# Verified Supplement Data — Complete Product Database

> Machine-readable full data dump. Site: https://verifiedsupplementdata.com
> Last updated: 2026-10-10 (prices re-verified via Amazon Product Advertising API; per-product verification dates below)
> License: CC BY 4.0
> 1050 products, 158 categories. Evidence summaries with PMIDs live on each category's linked pages.

## Methodology

We chain clinical trial evidence (PubMed systematic reviews and meta-analyses) to specific supplement products, verified against the NIH Dietary Supplement Label Database (DSLD). All costs are normalized to studied daily dose (not cost per pill). Third-party certifications (USP Verified, NSF Certified for Sport, IFOS, ConsumerLab) are independently verified. Affiliate disclosure: Amazon links use tag verifiedsupp2-20.

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## Algal Omega 3

**Clinical dose:** 250-500 mg/day combined EPA+DHA (general adequate intake range)
**Use cases:** general omega-3 intake
**Form verdict:** Shop by EPA+DHA mg and the EPA:DHA ratio, not softgel count — a DHA-only product won't replicate a trial that used EPA-containing oil; only Nordic Naturals discloses its EPA:DHA split among tracked products.
**Main page:** https://verifiedsupplementdata.com/algal-omega-3/best-overall/
**Guides:** https://verifiedsupplementdata.com/algal-omega-3/ · https://verifiedsupplementdata.com/algal-omega-3/best-overall/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Sports Research Vegan Omega-3, 60 Veggie Softgels | Sports Research | 630 mg combined EPA+DHA / 1 softgel | 60 | $26.95 | $0.46 | Non-GMO Tested, Vegan Certified | B0842DJJYC | cheapest-per-gram-combined | 2026-10-10 |
| DEVA Vegan Omega-3 DHA-EPA, 500mg | DEVA | 500 mg combined EPA+DHA / 1 softgel | 60 | $29.68 | $0.49 | None stated | B08F8K36RP | budget-carrageenan-free | 2026-10-10 |
| Future Kind Vegan Omega-3, 60 Softgels | Future Kind | 275 mg total omega-3 (combined EPA+DHA) / 1 softgel | 60 | $29.99 | $0.50 | None stated | B08LGJKN1J | — | 2026-10-10 |
| Nordic Naturals Algae Omega, 60 Softgels | Nordic Naturals | 715 mg total omega-3 / 2 softgels | 30 | $20.24 | $0.67 | Non-GMO, Certified Vegan | B0096M62O6 | only-disclosed-epa-dha-split | 2026-10-10 |
| Garden of Life Minami Algae Omega-3, 60 Mini Softgels | Garden of Life | 500 mg DHA (DHA-only, no disclosed EPA) / 2 mini softgels | 30 | $34.29 | $1.14 | None stated | B003B6Y0CE | dha-only-premium-priced | 2026-10-10 |

---

## Alpha Gpc

**Clinical dose:** 250-630 mg/day in healthy-adult trials
**Use cases:** cognitive performance, focus, sports power/strength
**Form verdict:** Alpha-GPC is commonly sold as a 50%-standardized blend, so a labeled 600mg may deliver only 300mg actual alpha-GPC — only Double Wood discloses this math; 4 of 5 tracked products don't state raw-material vs actual-compound weight.
**Main page:** https://verifiedsupplementdata.com/alpha-gpc/
**Guides:** https://verifiedsupplementdata.com/alpha-gpc/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| NOW Supplements Alpha-GPC 300 mg | NOW Foods | 300 mg Alpha-GPC / 1 capsule | 60 | $25.04 | $0.42 | Not independently verified | B001RYKA3U | — | 2026-10-10 |
| Sports Research Alpha GPC 630 mg (Extra Strength) | Sports Research | 630 mg Alpha-GPC / 1 liquid capsule | 60 | $26.95 | $0.45 | Not independently verified | B0FCN2D773 | — | 2026-10-10 |
| Nutricost Alpha GPC 600 mg | Nutricost | 600 mg Alpha-GPC / 2 capsules | 30 | $14.95 | $0.50 | Not independently verified | B076XDRNWH | cheapest | 2026-10-10 |
| Jarrow Formulas Alpha GPC 300 mg | Jarrow Formulas | 300 mg Alpha-GPC / 1 capsule | 60 | $34.94 | $0.58 | Not independently verified | B0013OQEHU | — | 2026-10-10 |
| Double Wood Supplements Alpha-GPC | Double Wood | 600 mg Alpha-GPC / 2 capsules | 30 | $19.95 | $0.67 | Brand discloses 50%-standardized raw material on its own product page (brand claim; not independently lab-verified) | B00XWQSD7G | disclosure-leader | 2026-10-10 |

---

## Alpha Lipoic Acid

**Clinical dose:** 600 mg/day (standard studied oral dose, racemic); studied range ~300-1,800 mg/day
**Use cases:** antioxidant support
**Form verdict:** Only the R-(+) enantiomer is biologically active; standard racemic ALA is 50% R, so 600mg racemic delivers only ~300mg active R — R-ALA/Na-R-ALA is better absorbed but not a cheaper source of active R per mg.
**Main page:** https://verifiedsupplementdata.com/alpha-lipoic-acid/best-overall/
**Guides:** https://verifiedsupplementdata.com/alpha-lipoic-acid/ · https://verifiedsupplementdata.com/alpha-lipoic-acid/best-overall/ · https://verifiedsupplementdata.com/alpha-lipoic-acid/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| BulkSupplements Alpha Lipoic Acid 600 mg (240 Capsules) | BulkSupplements | 600 mg alpha-lipoic acid / 1 capsule (600 mg) | 240 | $22.96 | $0.10 | None (third-party tested) | B0BB6BDWN3 | best-value | 2026-10-10 |
| Nutricost Alpha Lipoic Acid 600 mg (240 Capsules) | Nutricost | 600 mg alpha-lipoic acid / 1 capsule (600 mg) | 240 | $24.89 | $0.10 | None (in-house third-party tested) | B01CKLMWYS | — | 2026-10-10 |
| Horbaach Alpha Lipoic Acid 600 mg with Biotin (240 Capsules) | Horbaach | 600 mg alpha-lipoic acid / 2 capsules (600 mg) | 120 | $18.99 | $0.16 | None | B09KS6LLLD | — | 2026-10-10 |
| Nutricost R-Alpha Lipoic Acid 100 mg (120 Capsules) | Nutricost | 100 mg R-alpha-lipoic acid / 1 capsule (100 mg) | 120 | $21.95 | $0.18 | None | B09NS4HZZB | — | 2026-10-10 |
| Doctor's Best Alpha-Lipoic Acid 600 mg (60 Veg Caps) | Doctor's Best | 600 mg alpha-lipoic acid / 1 capsule (600 mg) | 60 | $16.99 | $0.28 | None (Non-GMO) | B000NRTWKO | — | 2026-10-10 |
| NOW Alpha Lipoic Acid 600 mg, Extra Strength (60 Veg Caps) | NOW Foods | 600 mg alpha-lipoic acid / 1 capsule (600 mg) | 60 | $16.19 | $0.28 | None (NOW GMP) | B0013OSKU4 | — | 2026-10-10 |
| Jarrow Formulas Alpha Lipoic Sustain 300 mg with Biotin, Sustained-Release (60 Tablets) | Jarrow Formulas | 300 mg alpha-lipoic acid / 1 tablet (300 mg) | 60 | $18.74 | $0.31 | None | B0013OX7XY | — | 2026-10-10 |
| Doctor's Best Stabilized R-Lipoic Acid with BioEnhanced Na-RALA 100 mg (60 Veg Caps) | Doctor's Best | 100 mg R-alpha-lipoic acid / 1 capsule (100 mg) | 60 | $19.99 | $0.33 | None | B005P0SD7C | — | 2026-10-10 |
| Country Life R-Alpha Lipoic Acid Complex 300 mg (60 Tablets) | Country Life | 300 mg alpha-lipoic acid / 1 tablet (300 mg) | 60 | $27.49 | $0.46 | None | B000FL9FUU | — | 2026-10-05 |
| Life Extension Super R-Lipoic Acid 240 mg active (Sodium R-Lipoate) (60 Veg Caps) | Life Extension | 240 mg R-alpha-lipoic acid / 1 capsule (240 mg) | 60 | $33.94 | $0.57 | None | B0027YKO1C | — | 2026-10-10 |
| Thorne Alpha-Lipoic Acid 300 mg (60 Caps) | Thorne | 300 mg alpha-lipoic acid / 1 capsule (300 mg) | 60 | $41.00 | $0.68 | NSF Certified for Sport | B00OVNEY1I | — | 2026-10-10 |
| Pure Encapsulations R-Lipoic Acid, Stabilized (100 mg) (60 Caps) | Pure Encapsulations | 100 mg R-alpha-lipoic acid / 1 capsule (100 mg) | 60 | $57.00 | $0.95 | None (practitioner brand) | B001684EFC | — | 2026-10-10 |
| Pure Encapsulations Alpha Lipoic Acid 600 mg (60 Caps) | Pure Encapsulations | 600 mg alpha-lipoic acid / 1 capsule (600 mg) | 60 | $67.50 | $1.12 | None (practitioner brand) | B0015SV7VC | — | 2026-10-10 |

---

## Ashwagandha

**Clinical dose:** no official dose; doses depend on the extract: KSM-66 trials used 250 to 675 mg a day (600 mg, as 300 mg twice, most often), Shoden 120 to 240 mg, Sensoril 125 to 500 mg, NooGandha 225 to 400 mg, unbranded root extract 700 to 1,000 mg; we price one trial day at the brand list price
**Use cases:** stress questionnaires, cortisol, sleep ratings and strength, measured in small 4- to 13-week trials in healthy or stressed adults; most trials were funded or supplied by the extract maker
**Form verdict:** match the extract named on the label to the dose its own trials used; withanolide percentages are measured differently across extracts and do not compare; a label that names no extract cannot be matched to a trial; rare liver injury has been reported (NIH LiverTox)
**Main page:** https://verifiedsupplementdata.com/ashwagandha/
**Guides:** https://verifiedsupplementdata.com/ashwagandha/ · https://verifiedsupplementdata.com/ashwagandha/best-overall/ · https://verifiedsupplementdata.com/ashwagandha/dosage-guide/ · https://verifiedsupplementdata.com/ashwagandha/ksm66-vs-sensoril/ · https://verifiedsupplementdata.com/ashwagandha/nootropics-depot-vs-jarrow-formulas/ · https://verifiedsupplementdata.com/ashwagandha/third-party-tested/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| BulkSupplements Ashwagandha Root Extract Powder (250 g) | BulkSupplements | 600 mg / 600 mg (about 1/4 tsp) | 417 | $21.97 | $0.05 | NSF Certified for Sport | B01N4RDZBA | — | 2026-10-10 |
| BulkSupplements Organic Ashwagandha Root Powder (500 g) | BulkSupplements | 900 mg / 900 mg (about 1/2 tsp) | 556 | $24.97 | $0.05 | NSF Certified for Sport | B0BVSPBGTW | — | 2026-10-10 |
| NOW Ashwagandha Extract 450 mg (90 Veg Capsules) | NOW Foods | 450 mg / 1 veg capsule | 90 | $9.85 | $0.11 | None | B0013OQIJY | — | 2026-10-10 |
| Life Extension Optimized Ashwagandha, Sensoril 125 mg (60 Capsules) | Life Extension | 125 mg / 1 capsule | 60 | $7.50 | $0.12 | None | B000JKREYG | — | 2026-10-10 |
| Jarrow Formulas Ashwagandha (KSM-66) 300 mg (120 Veggie Capsules) | Jarrow Formulas | 300 mg / 1 capsule | 120 | $22.93 | $0.19 | None | B0013OQEO8 | budget | 2026-10-10 |
| Nootropics Depot Sensoril Ashwagandha 125 mg (180 Capsules) | Nootropics Depot | 125 mg / 1 capsule | 180 | $33.99 | $0.19 | 3rd Party Lab Tested (brand claim) | B01CZ2EH72 | — | 2026-10-10 |
| NOW KSM-66 Ashwagandha 600 mg (90 Veg Capsules) | NOW Foods | 600 mg / 1 veg capsule | 90 | $18.50 | $0.21 | None | B0DHWGVVT2 | — | 2026-10-10 |
| Nutricost KSM-66 Ashwagandha 600 mg (60 Capsules) | Nutricost | 600 mg / 1 capsule | 60 | $14.95 | $0.25 | Third Party Tested (brand claim) | B079K32QB6 | — | 2026-10-10 |
| Nature Made Ashwagandha 125 mg, Sensoril (60 Capsules) | Nature Made | 125 mg / 1 capsule | 60 | $14.69 | $0.25 | None | B085V66GKY | — | 2026-10-10 |
| Nootropics Depot KSM-66 Ashwagandha 300 mg (90 Capsules) | Nootropics Depot | 300 mg / 1 capsule | 90 | $22.99 | $0.26 | 3rd Party Lab Tested; lot COAs (brand claim) | B01CZ2EFC4 | best-value | 2026-10-10 |
| Double Wood KSM-66 Ashwagandha 600 mg per 2 capsules (120 Capsules) | Double Wood | 600 mg / 2 capsules | 60 | $18.95 | $0.31 | Third-party tested; COAs published (brand claim) | B0F4T4X2Y5 | — | 2026-10-10 |
| Transparent Labs KSM-66 Ashwagandha 600 mg (60 Capsules) | Transparent Labs | 600 mg / 1 capsule | 60 | $19.99 | $0.33 | Informed Choice | B0D94ZGJBD | — | 2026-10-10 |
| Himalaya Organic Ashwagandha 670 mg (60 Caplets) | Himalaya | 290 mg / 1 caplet | 60 | $22.99 | $0.38 | None | B0002BBATC | — | 2026-10-10 |
| Organic India Ashwagandha root powder (180 Capsules) | Organic India | 800 mg / 2 capsules | 90 | $34.95 | $0.39 | None | B019ET27BC | — | 2026-10-10 |
| Momentous Ashwagandha, NooGandha 300 mg (60 Capsules) | Momentous | 300 mg / 1 capsule | 60 | $24.99 | $0.42 | NSF Certified for Sport | B0D7NQMMTS | — | 2026-10-10 |
| Core Med Science KSM-66 Ashwagandha 600 mg (60 Capsules) | Core Med Science | 600 mg / 1 capsule | 60 | $27.99 | $0.47 | NSF Certified for Sport (label mark) | B0GWS7H3HM | — | 2026-10-10 |
| Pure Encapsulations Ashwagandha 500 mg (60 Capsules) | Pure Encapsulations | 500 mg / 1 capsule | 60 | $29.00 | $0.49 | None | B0058HX8WM | — | 2026-10-10 |
| Klean Athlete Klean Ashwagandha 500 mg (60 Capsules) | Klean Athlete | 500 mg / 1 capsule | 60 | $32.00 | $0.54 | NSF Certified for Sport | B0CS7G4NS5 | — | 2026-10-10 |
| Youtheory Ashwagandha 1,000 mg blend with KSM-66 (60 Capsules) | Youtheory | 600 mg / 2 capsules | 30 | $16.79 | $0.56 | NSF/ANSI 173 (listed); brand FAQ: 'not third-party tested' | B07TWS9XVN | — | 2026-10-10 |
| Thorne Ashwagandha, Shoden 120 mg (30 Capsules) | Thorne | 120 mg / 1 capsule | 30 | $22.00 | $0.73 | Thorne Verified; NSF/ANSI 173 (listed) | B0FFQPKH7Z | quality | 2026-10-10 |
| Sports Research Ashwagandha, Shoden 120 mg + root powder (60 Softgels) | Sports Research | 120 mg / 2 softgels | 30 | $21.95 | $0.73 | Third Party Tested (brand claim) | B0CTYQT78S | — | 2026-10-10 |
| Physician's Choice KSM-66 Ashwagandha 1,000 mg per 2 capsules (60 Capsules) | Physician's Choice | 1000 mg / 2 capsules | 30 | $29.97 | $1.00 | Third-party tested (brand claim) | B07S76M4D5 | — | 2026-10-10 |

---

## Ashwagandha Gummies


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nature's Way Ashwagandha Gummies, Sensoril 125 mg (90 Gummies) | Nature's Way | 125 mg / 2 gummies | 45 | $13.94 | $0.31 | None | B09QV5LYZX | — | 2026-10-10 |
| Goli Ashwagandha & Vitamin D Gummies, KSM-66 (60 Gummies) | Goli Nutrition | 300 mg / 2 gummies | 30 | $11.38 | $0.38 | None | B094T2BZCK | budget | 2026-10-10 |
| Nutricost Ashwagandha Extract Gummies, 30:1 (60 Gummies) | Nutricost | 40 mg / 2 gummies | 30 | $13.95 | $0.46 | Tested by independent, ISO-accredited laboratories (brand claim) | B09WTJW9L4 | — | 2026-10-10 |
| Nature Made Ashwagandha Gummies, KSM-66 (60 Gummies) | Nature Made | 300 mg / 2 gummies (1 gummy twice daily) | 30 | $18.42 | $0.62 | None | B0B8QGMLBS | — | 2026-10-10 |
| Himalaya KSM-66 Organic Ashwagandha Gummies (60 Gummies) | Himalaya | 300 mg / 2 gummies | 28 | $19.28 | $0.69 | None | B0BRSRB27B | organic | 2026-10-10 |

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## Astaxanthin

**Clinical dose:** 4-12 mg/day in most studies (12 mg is a common commercial serving)
**Use cases:** eye/screen comfort, skin, exercise; evidence mixed
**Form verdict:** No evidence higher doses add benefit — a 20 mg/day trial in trained cyclists found nothing.
**Main page:** https://verifiedsupplementdata.com/astaxanthin/best-overall/
**Guides:** https://verifiedsupplementdata.com/astaxanthin/ · https://verifiedsupplementdata.com/astaxanthin/best-overall/ · https://verifiedsupplementdata.com/astaxanthin/dosage-guide/ · https://verifiedsupplementdata.com/astaxanthin/for-eye-visual-fatigue/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| NOW Foods Astaxanthin 4 mg (Zanthin) | NOW Foods | 4 mg astaxanthin / 1 softgel | 90 | $17.02 | $0.19 | None stated | B004PGSZZC | best-value | 2026-10-10 |
| Nutricost Astaxanthin 12 mg | Nutricost | 12 mg astaxanthin / 1 softgel | 120 | $27.95 | $0.23 | None stated | B078Z16G8W | bulk-value | 2026-10-10 |
| Sports Research Triple Strength Astaxanthin 12 mg | Sports Research | 12 mg astaxanthin / 1 softgel | 60 | $24.26 | $0.40 | None stated | B07V574YYY | oil-carrier | 2026-10-10 |
| Nutrex Hawaii BioAstin 12 mg | Nutrex Hawaii | 12 mg astaxanthin / 1 softgel | 50 | $34.49 | $0.69 | None stated | B006X1DCVO | natural-source-pedigree | 2026-10-10 |

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## B Complex

**Clinical dose:** No single 'B-complex' dose; the key numeric guardrail is vitamin B6's 100 mg/day Upper Limit — dose for adequacy, not potency
**Use cases:** B-vitamin intake adequacy (not cardiovascular prevention)
**Form verdict:** Prefer the active 5-MTHF folate form over folic acid; a B-complex is not proven to protect the heart.
**Main page:** https://verifiedsupplementdata.com/b-complex/best-overall/
**Guides:** https://verifiedsupplementdata.com/b-complex/ · https://verifiedsupplementdata.com/b-complex/best-overall/ · https://verifiedsupplementdata.com/b-complex/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nature's Bounty Super B-Complex with Vitamin C (150 Tablets) | Nature's Bounty | 5 mg B6 / 1 tablet | 150 | $8.94 | $0.06 | None | B0014D2GEK | — | 2026-10-10 |
| Nature Made Super B-Complex with Vitamin C (140 Tablets) | Nature Made | 2 mg B6 / 1 tablet | 140 | $9.89 | $0.07 | USP Verified | B005D0DTS2 | — | 2026-10-10 |
| NOW Vitamin B-50 (100 Veg Capsules) | NOW Foods | 50 mg B6 / 1 capsule | 100 | $11.62 | $0.12 | None | B00DHX3Z3G | — | 2026-10-10 |
| Solgar B-Complex '50' (100 Veg Capsules) | Solgar | 50 mg B6 / 1 capsule | 100 | $12.32 | $0.12 | None | B00024D6CS | — | 2026-10-10 |
| NOW Vitamin B-100 (100 Veg Capsules) | NOW Foods | 100 mg B6 / 1 capsule | 100 | $13.02 | $0.13 | None | B000UX110A | — | 2026-10-10 |
| Solgar B-Complex '100' (100 Veg Capsules) | Solgar | 100 mg B6 / 1 capsule | 100 | $18.92 | $0.19 | None | B000RZQNV8 | — | 2026-10-10 |
| Jarrow Formulas B-Right (100 Veggie Caps) | Jarrow Formulas | 35 mg B6 / 1 capsule | 100 | $19.99 | $0.20 | None | B0016003Z0 | — | 2026-10-10 |
| Pure Encapsulations B-Complex Plus (120 Capsules) | Pure Encapsulations | 16.7 mg B6 / 1 capsule | 120 | $42.00 | $0.35 | None | B00JYFN6DU | — | 2026-10-10 |
| Country Life Coenzyme B-Complex (240 Capsules) | Country Life | 50 mg B6 / 2 capsules | 120 | $45.88 | $0.38 | None | B001LXRWWE | — | 2026-10-10 |
| Designs for Health B-Supreme Methylated B Complex (120 Capsules) | Designs for Health | 50 mg B6 / 1 capsule | 120 | $52.99 | $0.44 | None | B00290I4NO | — | 2026-10-10 |
| Thorne Basic B Complex (60 Capsules) | Thorne | 10 mg B6 / 1 capsule | 60 | $27.00 | $0.45 | NSF Certified (brand-stated; not confirmed in the public registry) | B00HST919C | — | 2026-10-10 |

---

## B12 1000mcg


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Vitamatic Vitamin B12 1000 mcg Fast Dissolve (365 tablets) | Vitamatic | 1000 mcg / 1 tablet | 365 | $9.99 | $0.02 | None stated (GMP claim) | B0BVF333B1 | budget | 2026-10-10 |
| Nature's Bounty Vitamin B12 1000 mcg Caplets (200 tablets) | Nature's Bounty | 1000 mcg / 1 coated tablet | 200 | $9.97 | $0.05 | None | B00DYSUQR2 | — | 2026-10-10 |
| Nutricost Vitamin B12 Methylcobalamin 1000 mcg (240 capsules) | Nutricost | 1000 mcg / 1 capsule | 240 | $13.95 | $0.06 | None stated (third-party tested claim) | B0B6DG339Q | methyl-budget | 2026-10-10 |
| Nature Made Vitamin B12 1000 mcg Time Release (160 tablets) | Nature Made | 1000 mcg / 1 tablet | 160 | $10.65 | $0.07 | None stated | B005DXM32M | — | 2026-10-10 |
| NatureWise Vitamin B12 1000 mcg (60 softgels) | NatureWise | 1000 mcg / 1 softgel | 60 | $6.99 | $0.12 | NSF/ANSI 173 | B0CHKKGDXD | tested | 2026-10-10 |

---

## Beetroot

**Clinical dose:** ~6-13 mmol nitrate/day (~372-800 mg); minimum effective ~6 mmol (~372 mg); benefit plateaus ~8.4 mmol (~520 mg)
**Use cases:** exercise performance / nitric oxide support
**Form verdict:** The dose that matters is nitrate content, not beetroot weight — almost no label discloses nitrate (only 1 of 16 tracked products does), so most retail products can't be verified against the studied dose.
**Main page:** https://verifiedsupplementdata.com/beetroot/best-overall/
**Guides:** https://verifiedsupplementdata.com/beetroot/ · https://verifiedsupplementdata.com/beetroot/best-overall/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| BulkSupplements Beet Root Extract, 400 mg (365 capsules) | BulkSupplements | 400 mg beet extract / 1 capsule (400 mg extract) | 365 | $21.96 | $0.06 | COA on request (not stamped) | B0CFSG9DNN | — | 2026-10-10 |
| Horbaach Beet Root Capsules (320 capsules) | Horbaach | 1500 mg beetroot / 2 capsules | 160 | $19.99 | $0.12 | Non-GMO (no third-party cert) | B091Z6ZX9V | — | 2026-10-10 |
| Micro Ingredients Organic Beet Root Juice Powder (1 lb) | Micro Ingredients | 3500 mg beet juice powder / 1 scoop (~3.5 g) | 129 | $23.96 | $0.19 | USDA Organic | B01N32M7BR | best-value | 2026-10-10 |
| Nature's Way Beet Root, 1,000 mg per serving (100 capsules) | Nature's Way | 1000 mg beetroot / 2 capsules (1,000 mg) | 50 | $11.19 | $0.22 | TRU-ID DNA authenticated | B00068JBIS | — | 2026-10-10 |
| Zazzee Organic Beet Root 20:1 Extract (120 capsules) | Zazzee | 400 mg beet extract (20:1) / 1 capsule (400 mg 20:1 extract) | 120 | $27.97 | $0.23 | USDA Organic | B07SLFG6JY | — | 2026-10-10 |
| NOW Sports Beet Root, 550 mg (180 veg capsules) | NOW Foods | 1650 mg beetroot / 3 capsules (1,650 mg) | 60 | $15.13 | $0.25 | cGMP (NPA-certified facility) | B09KYHB8K1 | — | 2026-10-10 |
| Force Factor Total Beets Soft Chews with Nitrates (60 chews) | Force Factor | 1000 mg beet + nitrate extract / 1 chew | 60 | $14.98 | $0.25 | None | B095WNBLMN | — | 2026-10-10 |
| KOS Organic Beet Root Powder (90 servings) | KOS | 4000 mg beet powder / 1 scoop (~4 g) | 90 | $23.95 | $0.27 | USDA Organic | B07K413HHM | — | 2026-10-10 |
| Nature's Nutrition Organic Beet Root, 1,300 mg (60 capsules) | Nature's Nutrition | 1300 mg beetroot / 2 capsules (1,300 mg) | 30 | $9.82 | $0.33 | USDA Organic | B084KXBMDS | — | 2026-10-10 |
| Wonder Beet Beet Root Capsules 1,100 mg, standardized to 2% nitrates (180 caps) | Wonder Beet | 1100 mg beet root powder / 2 capsules (1,100 mg beet root) | 90 | $34.95 | $0.39 | None stated (brand claims cGMP, USP weight/disintegration conformance) | B0FC31BCBM | — | 2026-10-10 |
| Nature's Truth Beet Root Gummies (60 count) | Nature's Truth | 300 mg beet extract / 2 gummies | 30 | $12.53 | $0.41 | None | B09TRZ3DXT | — | 2026-10-10 |
| Zhou N.O. Pro Nitric Oxide with Beet Root & L-Arginine (120 capsules) | Zhou Nutrition | 160 mg beetroot / 4 capsules | 30 | $28.69 | $0.96 | None | B072LB6YLD | — | 2026-10-10 |
| Snap Supplements Organic Beet Root Powder, Mixed Berry (30 servings) | Snap Supplements | 5000 mg beet blend / 1 scoop | 30 | $32.95 | $1.10 | USDA Organic | B07SHZPWVY | — | 2026-10-10 |
| Snap Supplements Nitric Oxide Beet Root Chews, Mixed Berry (60 chews) | Snap Supplements | 1250 mg beet extract / 2 chews | 30 | $33.95 | $1.13 | None | B0DDR4YMTT | — | 2026-10-10 |
| HumanN SuperBeets Beet Root Powder, Black Cherry (30 servings) | HumanN | 5000 mg beet blend / 1 scoop (~5 g) | 30 | $37.95 | $1.27 | Third-party tested (lab not named) | B01ENMEXO4 | — | 2026-10-10 |
| HumanN SuperBeets Heart Chews, Pomegranate Berry (60 count) | HumanN | 500 mg beetroot / 2 chews | 30 | $39.95 | $1.33 | Third-party tested (lab not named) | B07SRK1F3Y | — | 2026-10-10 |

---

## Berberine

**Clinical dose:** 500 mg 2-3x/day (1,000-1,500 mg/day total), taken with or just before meals
**Use cases:** glucose and cholesterol markers (weight effects modest)
**Form verdict:** Berberine's weight effect is small (roughly 1-2% of body weight in some analyses, none in others); it has real CYP3A4/P-glycoprotein drug interactions, so check with a doctor before combining it with statins, cyclosporine, or diabetes medication.
**Main page:** https://verifiedsupplementdata.com/supplements/berberine/
**Guides:** https://verifiedsupplementdata.com/berberine/ · https://verifiedsupplementdata.com/berberine/best-overall/ · https://verifiedsupplementdata.com/berberine/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| NOW Supplements Berberine Glucose Support | NOW Foods | 400 mg / 3 capsules | 30 | $21.99 | $0.73 | None | B07PSMZ3J1 | best-value | 2026-10-10 |
| Sunergetic Premium Berberine 1200mg | Sunergetic | 1200 mg / 2 capsules | 30 | $22.95 | $0.76 | None | B01AMPTXLE | — | 2026-10-10 |
| Thorne Berberine 1000mg | Thorne | 1000 mg / 2 capsules | 30 | $44.00 | $1.47 | NSF Certified for Sport | B009LI7VRC | quality | 2026-10-10 |

---

## Beta Alanine

**Clinical dose:** 4-6 g/day for at least 4 weeks (cumulative loading dose, split into smaller doses through the day)
**Use cases:** high-intensity exercise performance (~1-4 minute efforts)
**Form verdict:** It is a loading supplement with no same-day/pre-workout effect — the tingling (paresthesia) is harmless and proves a large single dose, not an effective daily total; it helps ~1-4 minute high-intensity efforts, not sub-60-second sprints or 1RM strength.
**Main page:** https://verifiedsupplementdata.com/beta-alanine/
**Guides:** https://verifiedsupplementdata.com/beta-alanine/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| BulkSupplements Beta-Alanine Powder (500 g) | BulkSupplements | 3000 mg beta-alanine / 1 scoop (3 g) | 167 | $21.97 | $0.18 | ISO 17025 third-party tested, cGMP | B00EIO4I7A | best-value | 2026-10-10 |
| Nutricost Beta-Alanine Powder (300 g) | Nutricost | 3000 mg beta-alanine / 1 scoop (3 g) | 100 | $14.95 | $0.20 | 3rd-party tested (ISO lab) | B00MWE8WAM | — | 2026-10-10 |
| ALLMAX Beta-Alanine Powder BetaSynth (400 g) | ALLMAX | 3200 mg beta-alanine / 1 scoop (3.2 g) | 125 | $23.98 | $0.23 | >99% purity, 5-stage tested, cGMP | B003NZE0OG | — | 2026-10-10 |
| NOW Sports Beta-Alanine CarnoSyn Powder (500 g) | NOW Sports | 2000 mg beta-alanine / 1/2 tsp (2 g) | 250 | $29.40 | $0.23 | cGMP (NPA A-rated); CarnoSyn | B0017KU74Q | pick-quality | 2026-10-10 |
| Nutricost Beta-Alanine Capsules 3400 mg (240 ct) | Nutricost | 3400 mg beta-alanine / 4 capsules | 60 | $18.95 | $0.37 | 3rd-party tested (ISO lab) | B07XZL1ZQS | — | 2026-10-10 |
| BulkSupplements Beta-Alanine Capsules (240 ct) | BulkSupplements | 3000 mg beta-alanine / 4 capsules | 60 | $19.96 | $0.44 | ISO 17025 third-party tested, cGMP | B0CCQLST2F | — | 2026-10-10 |
| Codeage Liposomal Beta-Alanine CarnoSyn (180 caps) | Codeage | 1600 mg beta-alanine / 3 capsules | 60 | $42.99 | $1.79 | None stated | B0BX941219 | — | 2026-10-10 |
| Thorne Beta-Alanine-SR CarnoSyn (NSF Sport) | Thorne | 1600 mg beta-alanine / 2 tablets | 60 | $46.00 | $1.92 | NSF Certified for Sport (independent) (brand-stated; not confirmed in the public registry) | B06XKWQ5NW | pick-tested | 2026-10-10 |

---

## Beta Carotene

**Clinical dose:** Retail supplements commonly sell 15,000-25,000 IU/day (~9-15mg); ATBC harm-trial dose was 20 mg/day isolated; CARET harm-trial dose was 30 mg/day + 25,000 IU retinyl palmitate; no RDA or Upper Limit exists for beta-carotene itself
**Use cases:** general antioxidant use
**Form verdict:** Current/former smokers and anyone with significant asbestos exposure should not take beta-carotene supplements at any dose — this is settled evidence from two RCTs plus a Cochrane meta-analysis, and the typical retail dose sits close to the harm-trial doses, not far below them.
**Main page:** https://verifiedsupplementdata.com/vitamin-a/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| NOW Foods Natural Beta Carotene 25,000 IU | NOW Foods | 15 mg beta-carotene / 1 softgel | 180 | $21.94 | $0.12 | None stated | B00024D862 | isolated-near-atbc-dose | 2026-10-10 |
| Pure Encapsulations Beta Carotene (with Mixed Carotenoids) 25,000 IU | Pure Encapsulations | 15 mg beta-carotene / 1 softgel capsule | 90 | $37.00 | $0.41 | Hypoallergenic, NSF-audited GMP | B0064R8DQG | — | 2026-10-10 |
| Country Life Carotenoid Complex | Country Life | null mg carotenoid blend (not disclosed) / 1 softgel | 60 | $27.59 | $0.46 | None stated | B001USD5QW | — | 2026-10-10 |
| Karuna Mixed Carotenoids | Karuna | 7.75 mg disclosed carotenoids (lutein+lycopene+zeaxanthin+cryptoxanthin; beta-carotene amount not disclosed) / 1 vegetarian capsule | 30 | $36.60 | $1.22 | None stated | B0025PZGU2 | lowest-beta-carotene-dominance | 2026-10-10 |

---

## Betaine Hcl

**Clinical dose:** Retail capsules commonly 500-650 mg plain (up to ~790 mg blended with pepsin); no dose-response or chronic-use trial exists for this OTC range
**Use cases:** digestive support
**Form verdict:** The popular capsule-titration 'warmth test' (add a capsule per meal until it burns) has no clinical validation; avoid self-titrating if you have ulcer/gastritis/GERD history or take NSAIDs, corticosteroids, PPIs, or H2 blockers — talk to your doctor first.
**Main page:** https://verifiedsupplementdata.com/betaine-hcl/
**Guides:** https://verifiedsupplementdata.com/betaine-hcl/ · https://verifiedsupplementdata.com/betaine-hcl/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nutricost Betaine HCl + Pepsin 790mg (240ct) | Nutricost | 790 mg blend (betaine HCl + pepsin) / 1 capsule, with a protein-containing meal | 240 | $16.95 | $0.07 | None claimed | B077NS1KDK | with-pepsin | 2026-10-10 |
| NOW Foods Betaine HCl 648mg, Vegetarian Formula (120ct) | NOW Foods | 648 mg betaine HCl / 1 veg capsule, with a protein-containing meal | 120 | $13.46 | $0.11 | None claimed | B000M4CD2C | plain | 2026-10-10 |
| Doctor's Best Betaine HCl Pepsin & Gentian Bitters (120ct) | Doctor's Best | 1 capsule / 1 capsule, with a protein-containing meal | 120 | $14.99 | $0.12 | None claimed | B000NRTXGW | with-pepsin-gentian | 2026-10-10 |
| Solaray High Potency Betaine HCl with Pepsin (100ct) | Solaray | 1 capsule / 1 VegCap, with a protein-containing meal | 100 | $14.89 | $0.15 | None claimed | B003YMCALI | with-pepsin | 2026-10-10 |
| Thorne Betaine HCl & Pepsin (225ct) | Thorne | 1 capsule / 1 capsule, with a protein-containing meal | 225 | $47.00 | $0.21 | NSF Certified for Sport (per brand positioning) | B00OVMTTFK | premium-certified | 2026-10-10 |
| BIOptimizers HCL Breakthrough, Pepsin-Free (90ct) | BIOptimizers | 1 capsule / 1 capsule, with a protein-containing meal | 90 | $27.99 | $0.31 | None claimed | B071GC5VRN | pepsin-free | 2026-10-10 |

---

## Betaine Tmg

**Clinical dose:** ~2.5 g/day for performance (often split 1.25g twice daily); 3-6 g/day used in other studies
**Use cases:** athletic performance, body composition
**Form verdict:** Two distinct dose ranges, not one — no performance trial in this evidence base found a 1RM strength advantage at the ~2.5g dose; the 6g/day dose also raised LDL cholesterol and triglycerides in studies.
**Main page:** https://verifiedsupplementdata.com/b12/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| BulkSupplements Betaine Anhydrous Powder (1 kg) | BulkSupplements | 1500 g betaine (TMG) / 1 scoop (1.5 g) | 666 | $28.97 | $0.07 | Third-party tested, cGMP | B00GW6T0O8 | best-value | 2026-10-10 |
| Nutricost Betaine Anhydrous TMG Powder (500 g) | Nutricost | 1500 g betaine (TMG) / 1 scoop (~1.5 g, unmeasured by label) | 333 | $15.95 | $0.08 | 3rd-party tested (ISO lab) | B01BCQ3RLE | — | 2026-10-10 |
| Vitamatic Betaine Anhydrous (TMG) Powder (250 g) | Vitamatic | 1497 g betaine (TMG) / 1 scoop (~1.5 g) | 167 | $9.99 | $0.10 | None stated | B0GW9LGJNC | best-value-small | 2026-10-10 |
| Nutricost TMG (Trimethylglycine) 750 mg (120 caps) | Nutricost | 750 mg betaine (TMG) / 1 capsule | 120 | $9.95 | $0.28 | 3rd-party tested (ISO lab) | B01F5QSHUS | budget-capsule | 2026-10-10 |
| NOW Foods TMG Betaine 1,000 mg (Tablets) | NOW Foods | 1000 mg betaine (TMG) / 1 tablet | 100 | $17.14 | $0.43 | cGMP (NPA-certified facility) | B000MGOWN8 | — | 2026-10-10 |
| Life Extension TMG 500 mg (100 Liquid Veg Caps) | Life Extension | 500 mg betaine (TMG) / 1 capsule | 100 | $19.95 | $1.00 | GMP; reputable manufacturer | B0BTV1V1LF | clean-label-capsule | 2026-10-10 |

---

## Biotin

**Clinical dose:** ~30 mcg/day adequate intake; if supplementing, 1,000-2,500 mcg/day is plenty (megadoses of 5,000-10,000 mcg on labels are not shown to work better)
**Use cases:** hair and nail support (little evidence of benefit unless intake is low)
**Form verdict:** form isn't the differentiator; the real caution is dose — avoid unnecessary megadoses (5,000-10,000 mcg) because excess biotin can distort blood tests, including troponin and thyroid tests
**Main page:** https://verifiedsupplementdata.com/supplements/biotin/
**Guides:** https://verifiedsupplementdata.com/biotin/ · https://verifiedsupplementdata.com/biotin/10000-mcg/ · https://verifiedsupplementdata.com/biotin/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nature Made Biotin 2500 mcg Extra Strength | Nature Made | 2500 mcg / 1 softgel | 150 | $17.40 | $0.11 | USP Verified | B00DS5BG52 | best-value | 2026-10-10 |
| Sports Research Biotin 5000 mcg with Coconut Oil | Sports Research | 5000 mcg / 1 veggie softgel | 120 | $17.95 | $0.15 | Non-GMO Verified | B00IOZWC2M | budget | 2026-10-10 |
| Thorne Biotin-8 (8000 mcg) | Thorne | 8000 mcg / 1 capsule | 60 | $28.00 | $0.47 | NSF Certified for Sport | B0797CG5R8 | quality | 2026-10-10 |

---

## Biotin 10000mcg


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Vitamatic Biotin 10,000 mcg (365 vegan tablets) | Vitamatic | 10000 mcg / 1 tablet | 365 | $9.99 | $0.03 | None stated | B0CC66P3P9 | budget | 2026-10-10 |
| Puritan's Pride Biotin 10,000 mcg (2 x 100 softgels) | Puritan's Pride | 10000 mcg / 1 softgel | 200 | $15.06 | $0.07 | None | B0D14XSHRL | trial | 2026-10-10 |
| Nutricost Biotin 10,000 mcg (240 capsules) | Nutricost | 10000 mcg / 1 capsule | 240 | $14.95 | $0.07 | None stated (third-party tested claim) | B01AMJCHB8 | — | 2026-10-10 |
| Nature's Bounty Biotin 10,000 mcg Rapid Release (120 softgels) | Nature's Bounty | 10000 mcg / 1 softgel | 120 | $12.99 | $0.10 | None | B00EC4XAE8 | — | 2026-10-10 |
| NOW Biotin 10 mg (10,000 mcg) Extra Strength (120 veg capsules) | NOW Foods | 10000 mcg / 1 capsule | 120 | $13.78 | $0.11 | NPA GMP Certified | B00CYA4RIK | tested | 2026-10-10 |

---

## Black Seed Oil

**Main page:** https://verifiedsupplementdata.com/black-seed-oil/
**Guides:** https://verifiedsupplementdata.com/black-seed-oil/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Health Thru Nutrition Black Seed Oil 500 mg (100 softgels) | Health Thru Nutrition | 0.5 g / 1 softgel (500 mg) | 100 | $15.95 | $0.16 | None: not listed in NSF Certified for Sport, NSF/ANSI 173, Informed Sport, Informed Choice or USP Verified (checked 2026-10-06) | B01M1CKOSN | — | 2026-10-10 |
| NOW Black Cumin Seed Oil 1,000 mg (60 softgels) | NOW | 1 g / 1 softgel (1,000 mg) | 60 | $13.90 | $0.23 | None: not listed in NSF Certified for Sport, NSF/ANSI 173, Informed Sport, Informed Choice or USP Verified (checked 2026-10-06) | B07ZL3V1DN | — | 2026-10-10 |
| Nutricost Black Cumin Seed Oil 1,000 mg (120 softgels) | Nutricost | 1 g / 2 softgels (1,000 mg) | 60 | $15.50 | $0.26 | None: not listed in NSF Certified for Sport, NSF/ANSI 173, Informed Sport, Informed Choice or USP Verified (checked 2026-10-06) | B09TG1C7F7 | — | 2026-10-10 |
| Mother Nature Organics Black Seed Oil 2,000 mg (180 softgels) | Mother Nature Organics | 2 g / 2 softgels (2,000 mg) | 90 | $36.95 | $0.41 | None: not listed in NSF Certified for Sport, NSF/ANSI 173, Informed Sport, Informed Choice or USP Verified (checked 2026-10-06) | B07SMBHG9Y | — | 2026-10-10 |
| Sweet Sunnah Black Seed Oil, Liquid (16 fl oz) | Sweet Sunnah | 5 g / 1 tsp (5 g) | 96 | $39.99 | $0.42 | None: not listed in NSF Certified for Sport, NSF/ANSI 173, Informed Sport, Informed Choice or USP Verified (checked 2026-10-06) | B000XY6NAE | — | 2026-10-10 |
| Triquetra TQ-Advanced Black Seed Oil 500 mg (60 softgels) | Triquetra Health | 0.5 g / 1 softgel (500 mg) | 60 | $28.99 | $0.48 | None: not listed in NSF Certified for Sport, NSF/ANSI 173, Informed Sport, Informed Choice or USP Verified (checked 2026-10-06) | B0938R37X3 | — | 2026-10-10 |
| Heritage Store Organic Black Seed Oil, Liquid (8 fl oz) | Heritage Store | 4.6 g / 1 tsp (5 mL, 4.6 g) | 47 | $26.90 | $0.57 | None: not listed in NSF Certified for Sport, NSF/ANSI 173, Informed Sport, Informed Choice or USP Verified (checked 2026-10-06) | B00FEHF4D2 | — | 2026-10-10 |
| Amazing Herbs Premium Black Seed Oil, Liquid (8 fl oz) | Amazing Herbs | 5 g / 5 mL (5 g) | 48 | $29.86 | $0.62 | None: not listed in NSF Certified for Sport, NSF/ANSI 173, Informed Sport, Informed Choice or USP Verified (checked 2026-10-06) | B0009EYIQ4 | — | 2026-10-10 |
| Mother Nature Organics Organic Black Seed Oil, Liquid (8 fl oz) | Mother Nature Organics | 5 g / 1 tsp (5 g) | 48 | $34.95 | $0.73 | None: not listed in NSF Certified for Sport, NSF/ANSI 173, Informed Sport, Informed Choice or USP Verified (checked 2026-10-06) | B073RMKWXZ | — | 2026-10-10 |

---

## Boron

**Clinical dose:** 3 mg/day elemental boron is the most-studied and most common retail dose; no evidence of added benefit above ~10 mg/day; US upper limit is 20 mg/day
**Use cases:** bone/mineral metabolism support
**Form verdict:** no evidence that more than ~10 mg/day adds benefit; stick to the 3 mg most-studied dose rather than combining boron-containing products toward the 20 mg upper limit
**Main page:** https://verifiedsupplementdata.com/boron/best-overall/
**Guides:** https://verifiedsupplementdata.com/boron/ · https://verifiedsupplementdata.com/boron/best-overall/ · https://verifiedsupplementdata.com/boron/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| NOW Foods Boron 3 mg (Bororganic Glycine) | NOW Foods | 3 mg elemental boron / 1 capsule | 100 | $5.15 | $0.05 | cGMP (NPA-certified facility) | B00C0BTJGS | best-value | 2026-10-10 |
| Life Extension Boron 3 mg + Vitamin B2 | Life Extension | 3 mg elemental boron / 1 capsule | 100 | $5.25 | $0.05 | GMP; no third-party COA | B000LLYDEM | — | 2026-10-10 |
| Swanson Triple Boron Complex 3 mg | Swanson | 3 mg elemental boron / 1 capsule | 250 | $14.33 | $0.06 | cGMP | B07F92W9MK | bulk-value | 2026-10-10 |
| Vitamatic Chelated Boron 10 mg | Vitamatic | 10 mg elemental boron / 1 capsule | 240 | $13.99 | $0.06 | None stated | B0CZM9H6K9 | high-dose | 2026-10-10 |
| Pure Encapsulations Boron 2 mg | Pure Encapsulations | 2 mg elemental boron / 1 capsule | 60 | $14.00 | $0.23 | NSF-audited GMP, hypoallergenic | B003PR0U7I | clean-label | 2026-10-10 |

---

## Boswellia

**Clinical dose:** 100-250 mg/day of an AKBA-standardized extract (5-Loxin studied at 100 and 250 mg/day; Aflapin at 100 mg/day) — not plain boswellia powder
**Use cases:** joint comfort
**Form verdict:** look for a disclosed AKBA % or a named clinical extract (5-Loxin, Aflapin/AprèsFlex, BOS-10) — the raw mg total alone can't confirm a trial-grade product since commercial AKBA content ranges from 3.83% down to 0.03%
**Main page:** https://verifiedsupplementdata.com/boswellia/best-overall/
**Guides:** https://verifiedsupplementdata.com/boswellia/ · https://verifiedsupplementdata.com/boswellia/best-overall/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Double Wood Boswellia Serrata 1000 mg, 65% Boswellic Acid (240 Caps) | Double Wood | 1000 mg extract / 1 capsule | 240 | $19.95 | $0.08 | None | B09H8MR1ZM | — | 2026-10-10 |
| Carlyle Boswellia 1200 mg with Black Pepper (250 Caps) | Carlyle | 1200 mg extract / 1 capsule | 250 | $19.99 | $0.08 | None | B0C6N3K4TB | — | 2026-10-10 |
| NOW Boswellia Serrata Extract 500 mg (200 Softgels) | NOW Foods | 500 mg extract / 1 softgel | 200 | $35.97 | $0.18 | None | B07KGJHZTX | — | 2026-10-10 |
| Himalaya Boswellia 250 mg (120 Caps) | Himalaya | 250 mg extract / 1 capsule | 120 | $27.49 | $0.23 | None | B086VQMP3Y | — | 2026-10-10 |
| Nature's Way Boswellia Standardized Extract 307 mg (60 Tablets) | Nature's Way | 307 mg extract / 1 tablet | 60 | $14.99 | $0.25 | None | B00DKEUZKS | — | 2026-10-10 |
| Life Extension 5-LOX Inhibitor with AprèsFlex (60 Veg Caps) | Life Extension | 100 mg extract / 1 capsule | 60 | $16.50 | $0.28 | None | B006N3NXYS | — | 2026-10-10 |
| Solaray Boswellia (Ayurvedic Herbs) 300 mg (60 Caps) | Solaray | 300 mg extract / 1 capsule | 60 | $17.50 | $0.29 | None | B000I4ABF2 | — | 2026-10-10 |
| Solaray Boswellia Extra Strength 450 mg (+ Devil's Claw) (60 Caps) | Solaray | 450 mg extract / 1 capsule | 60 | $19.56 | $0.34 | None | B000QUL4H2 | — | 2026-10-10 |
| Swanson Boswellia with 5-LOXIN (60 Veg Caps) | Swanson | 125 mg extract / 1 capsule | 60 | $24.01 | $0.40 | None | B00A8FCFEQ | — | 2026-10-10 |
| Pure Encapsulations Boswellia AKBA with 5-LOXIN (60 Capsules) | Pure Encapsulations | 100 mg extract / 1 capsule | 60 | $34.00 | $0.57 | None | B0016LNJNM | — | 2026-10-10 |
| Terry Naturally BosMed 500 Extra Strength (120 Softgels) | Terry Naturally | 500 mg extract / 1 softgel | 120 | $71.16 | $0.59 | None | B08CL438X5 | — | 2026-10-10 |
| Gaia Herbs PRO Boswellia Joint Formula (60 Vegan Caps) | Gaia Herbs | 320 mg extract / 2 capsules | 30 | $45.00 | $1.50 | None | B0GRK3VZTT | — | 2026-10-10 |
| Terry Naturally Curamin Extra Strength (BosPure + BCM-95) (60 Tablets) | Terry Naturally | 0 mg extract / 3 tablets | 20 | $46.71 | $2.34 | None | B00BE6FD0Q | — | 2026-10-10 |

---

## Branched Chain Amino Acids

**Clinical dose:** 5-10 g/day, typically split ~5 g pre/post-workout; standard 2:1:1 ratio delivers ~2.5 g leucine per 5 g dose, at the 2-3 g 'leucine trigger' threshold; no formal upper limit, trials span 5-20 g/day
**Use cases:** muscle protein synthesis / exercise recovery, muscle soreness (mixed evidence for a standalone supplement)
**Form verdict:** standard 2:1:1 ratio hits the leucine trigger at a 5g dose, but whole protein (whey, meat, eggs) already delivers BCAAs past that threshold for anyone eating adequate total protein
**Main page:** https://verifiedsupplementdata.com/essential-amino-acids/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| BulkSupplements BCAA 2:1:1 Powder (500 g) | BulkSupplements | 1000 g BCAA / 1 scoop (1 g) | 500 | $23.97 | $0.05 | None stated | B00E7GV6H4 | best-value | 2026-10-10 |
| Nutricost BCAA 1000 mg Capsules (500 ct) | Nutricost | 1000 mg BCAA / 2 capsules (1,000 mg) | 250 | $21.95 | $0.09 | None stated | B01E9MTWGM | budget-capsule | 2026-10-10 |
| Optimum Nutrition Mega-Size BCAA 1000 Caps (400 ct) | Optimum Nutrition | 1000 mg BCAA / 2 capsules (1,000 mg) | 200 | $38.49 | $0.19 | None stated | B0057Y50AO | reputable-capsule | 2026-10-10 |
| Optimum Nutrition Instantized BCAA Powder (5,000 mg/serving, Unflavored) | Optimum Nutrition | 5000 g BCAA / 1 scoop (5,000 mg) | 60 | $39.99 | $0.67 | None stated | B002DYIZIU | — | 2026-10-10 |
| XTEND Original BCAA Powder, Watermelon Explosion (7,000 mg/serving) | XTEND | 7000 g BCAA / 1 scoop (7,000 mg) | 30 | $23.06 | $0.77 | None stated | B005CH0DT4 | flavored-electrolyte | 2026-10-10 |

---

## Bromelain

**Clinical dose:** potency is measured in GDU/MCU/FIP activity units, not mg, and these don't convert reliably across brands; no RDA/UL
**Use cases:** digestive enzyme use; other uses have limited evidence
**Form verdict:** check disclosed activity units (GDU/MCU/FIP), not just mg — two 500mg capsules tracked on the site carry 1,200 GDU and 3,000 GDU respectively, a 2.5x potency spread at the same label weight
**Main page:** https://verifiedsupplementdata.com/bromelain/best-overall/
**Guides:** https://verifiedsupplementdata.com/bromelain/ · https://verifiedsupplementdata.com/bromelain/best-overall/ · https://verifiedsupplementdata.com/bromelain/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nutricost Bromelain 500mg | Nutricost | 500 mg bromelain / 1 veg capsule | 120 | $16.95 | $0.14 | None claimed | B07TK4ZTLP | cheapest-per-serving | 2026-10-10 |
| Doctor's Best Quercetin Bromelain | Doctor's Best | 250 mg bromelain (combo) / 1 veg capsule | 180 | $28.99 | $0.17 | None claimed | B000NRYTPM | — | 2026-10-10 |
| NOW Foods Bromelain | NOW Foods | 500 mg bromelain / 1 veg capsule | 120 | $24.75 | $0.21 | None claimed | B000I2028A | best-value-per-gdu | 2026-10-10 |
| Life Extension Specially-Coated Bromelain | Life Extension | 500 mg bromelain / 1 enteric-coated tablet | 60 | $15.75 | $0.26 | None claimed | B0018EB2KO | — | 2026-10-10 |
| Doctor's Best 3000 GDU Bromelain | Doctor's Best | 500 mg bromelain / 1 capsule | 90 | $27.99 | $0.31 | None claimed | B002SDZXIG | highest-potency | 2026-10-10 |
| Pure Encapsulations Bromelain 2400 | Pure Encapsulations | 500 mg bromelain / 1 capsule | 60 | $40.00 | $0.67 | None claimed | B0064R8XC0 | premium | 2026-10-10 |

---

## Calcium Carbonate


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nature Made Calcium 600 mg with Vitamin D3 (220 tablets) | Nature Made | 600 mg elemental calcium / 1 tablet | 220 | $11.24 | $0.05 | USP Verified (brand-stated; not confirmed in the public registry) | B002FH5I0I | best-value | 2026-10-10 |
| Caltrate 600 Plus D3 (200 tablets) | Caltrate | 600 mg elemental calcium / 1 tablet | 200 | $16.78 | $0.08 | None stated | B0013TMWIK | — | 2026-10-10 |
| Nature's Bounty Calcium 1200 mg with Vitamin D3 (120 softgels) | Nature's Bounty | 1200 mg elemental calcium / 2 softgels | 60 | $8.87 | $0.15 | None stated | B0016KITZ6 | — | 2026-10-10 |

---

## Calcium Citrate

**Clinical dose:** no established clinical dose — see page
**Use cases:** bone health and daily calcium intake
**Form verdict:** calcium citrate absorbs without needing stomach acid, unlike calcium carbonate
**Main page:** https://verifiedsupplementdata.com/supplements/calcium-citrate/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Citracal Maximum Plus Calcium Citrate with Vitamin D3 | Citracal (Bayer) | 650 mg / 2 caplets | 90 | $14.96 | $0.17 | None | B001LRPUMY | best-value | 2026-10-10 |
| NOW Foods Calcium Citrate with Minerals & Vitamin D | NOW Foods | 600 mg / 2 tablets | 125 | $19.99 | $0.17 | None | B0013OQJ66 | — | 2026-10-10 |
| Solgar Calcium Citrate with Vitamin D3 | Solgar | 1000 mg / 4 tablets | 60 | $20.85 | $0.18 | None | B00013YZ2U | budget | 2026-10-10 |
| Citracal Petites Calcium Citrate with Vitamin D3 | Citracal (Bayer) | 400 mg / 2 caplets | 100 | $10.92 | $0.22 | None | B0043ZLTT4 | — | 2026-10-10 |

---

## Carnosine

**Clinical dose:** 500-1,000 mg/day is the typical retail range (human trials in this evidence base used 500mg-2g/day); for muscle carnosine loading specifically, beta-alanine 3.2-6.4 g/day is the effective route instead — oral carnosine itself is largely broken down before reaching muscle
**Use cases:** general antioxidant use; NOT an effective route to raising muscle carnosine
**Form verdict:** oral L-carnosine is substantially hydrolyzed by serum carnosinase into beta-alanine and histidine before it can meaningfully load muscle tissue; if the goal is muscle carnosine, beta-alanine (not carnosine, at any dose) is the evidenced route
**Main page:** https://verifiedsupplementdata.com/carnosine/
**Guides:** https://verifiedsupplementdata.com/carnosine/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| BulkSupplements L-Carnosine Powder | BulkSupplements | 500 mg L-carnosine / 1 scoop (~0.5 g) | 100 | $20.97 | $0.21 | Third-party tested (brand claim); no capsule fillers | B00H2KJO9O | cheapest-overall | 2026-10-10 |
| Nutricost L-Carnosine 500 mg | Nutricost | 500 mg L-carnosine / 1 capsule | 120 | $34.95 | $0.29 | Gluten-free, non-GMO (brand claim); no third-party COA disclosed | B07XSHFN58 | best-value-capsule | 2026-10-10 |
| NOW Foods L-Carnosine 500 mg | NOW Foods | 500 mg L-carnosine / 1 veg capsule | 50 | $18.27 | $0.37 | cGMP; widely recognized brand | B0013OUNSQ | best-known-brand | 2026-10-10 |
| Life Extension Carnosine 500 mg | Life Extension | 500 mg L-carnosine / 1 veg capsule | 60 | $25.50 | $0.43 | Reputable QC-focused brand; single-ingredient formula | B015QH35SU | clean-label | 2026-10-10 |
| Life Extension Super Carnosine 500 mg | Life Extension | 500 mg L-carnosine (+ 50 mg benfotiamine + 4 mg luteolin, combo) / 1 veg capsule | 60 | $30.00 | $0.50 | Combo product: 500 mg L-carnosine + 50 mg benfotiamine + 4 mg luteolin — NOT a pure carnosine product | B01MU8BBHK | — | 2026-10-10 |

---

## Choline

**Clinical dose:** NIH Adequate Intake: 425 mg/day (women), 550 mg/day (men); Upper Limit 3,500 mg/day for adults
**Use cases:** general nutrient adequacy (most Americans fall short of the AI)
**Form verdict:** most retail choline is choline bitartrate (a salt) — only about 41% of the labeled bitartrate weight is actual elemental choline, so 1,000mg of choline bitartrate delivers roughly 410mg elemental choline, not 1,000mg
**Main page:** https://verifiedsupplementdata.com/choline/best-overall/
**Guides:** https://verifiedsupplementdata.com/choline/ · https://verifiedsupplementdata.com/choline/best-overall/ · https://verifiedsupplementdata.com/choline/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nutricost Choline Bitartrate 650mg | Nutricost | 650 mg choline bitartrate / 1 capsule (650mg choline bitartrate) | 240 | $16.95 | $0.07 | None stated | B094XMC514 | best-value | 2026-10-10 |
| NOW Foods Choline & Inositol 500mg | NOW Foods | 630 mg choline bitartrate / 1 capsule (630mg choline bitartrate + 250mg inositol) | 100 | $9.79 | $0.10 | None stated | B0013OVYDY | — | 2026-10-10 |
| Double Wood Phosphatidylcholine 1200mg | Double Wood | 1200 mg phosphatidylcholine / 1 softgel (1200mg phosphatidylcholine) | 210 | $19.95 | $0.10 | None stated | B07PFYH2PQ | — | 2026-10-10 |
| Solgar Choline 350mg | Solgar | 350 mg choline / 1 capsule (350mg choline) | 100 | $12.74 | $0.13 | None stated | B000URVCRI | — | 2026-10-10 |

---

## Chondroitin

**Clinical dose:** 800-1,200 mg/day, as one dose or split (e.g. 400 mg three times a day); often combined with glucosamine 500 mg three times a day; slow-acting, trials measured outcomes at 6 months
**Use cases:** joint comfort (evidence is contested)
**Form verdict:** evidence is genuinely contested (results across trials are mixed); many cheap over-the-counter products deliver far less than the labeled amount (up to ~69% less in one US study), so favor third-party-tested or pharmaceutical-grade products
**Main page:** https://verifiedsupplementdata.com/supplements/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Doctor's Best Glucosamine Chondroitin MSM | Doctor's Best | 1500 mg / 2 capsules | 60 | $19.99 | $0.33 | None | B000NRYU4W | best-value | 2026-10-10 |
| NOW Supplements Glucosamine & Chondroitin | NOW Foods | 1500 mg / 2 capsules | 59 | $21.94 | $0.37 | None | B0013OSMRK | — | 2026-10-10 |

---

## Chromium

**Clinical dose:** ~35 mcg/day adequate intake for adult men (~25 mcg/day for women) — no RDA, no Tolerable Upper Intake Level; trials used 200-1,000 mcg/day, but there is no evidence a higher dose within that range works better
**Use cases:** general mineral intake; evidence for other uses is modest and inconsistent
**Form verdict:** form doesn't change the dose math — picolinate, GTF, and chelate all absorb about 1%; a bigger mcg number is not a bigger benefit, and rare kidney-injury case reports exist at very high, long-term chromium picolinate doses
**Main page:** https://verifiedsupplementdata.com/chromium/best-overall/
**Guides:** https://verifiedsupplementdata.com/chromium/ · https://verifiedsupplementdata.com/chromium/best-overall/ · https://verifiedsupplementdata.com/chromium/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nutricost Chromium (Picolinate) 1000 mcg (240 Tablets) | Nutricost | 1000 mcg chromium / 1 tablet | 240 | $9.99 | $0.04 | None | B09NQJSZXR | — | 2026-10-10 |
| BulkSupplements Chromium GTF Powder (Polynicotinate) 25 g | BulkSupplements | 200 mcg chromium / ~1.25 mg scoop | 500 | $18.97 | $0.04 | None | B0C75L56J3 | — | 2026-10-10 |
| NOW Chromium Picolinate 200 mcg (250 Veg Capsules) | NOW Foods | 200 mcg chromium / 1 capsule | 250 | $11.62 | $0.05 | None | B0019LPNLK | — | 2026-10-10 |
| Solaray GTF Chromium 200 mcg (200 VegCaps) | Solaray | 200 mcg chromium / 1 capsule | 200 | $13.59 | $0.07 | None | B000TMFTOQ | — | 2026-10-10 |
| Solgar Chromium Picolinate 200 mcg (180 Veg Capsules) | Solgar | 200 mcg chromium / 1 capsule | 180 | $19.06 | $0.11 | None | B00020IC4Y | — | 2026-10-10 |
| Bluebonnet Chelated Chromium (Albion) 200 mcg (90 Caps) | Bluebonnet | 200 mcg chromium / 1 capsule | 90 | $11.96 | $0.13 | None | B000POWLX0 | — | 2026-10-10 |
| Nature's Bounty Chromium Picolinate 800 mcg (50 Tablets) | Nature's Bounty | 800 mcg chromium / 1 tablet | 50 | $6.93 | $0.14 | None | B000NKI0V8 | — | 2026-10-10 |
| Bluebonnet Chromium Picolinate 500 mcg (100 Caps) | Bluebonnet | 500 mcg chromium / 1 capsule | 100 | $22.36 | $0.22 | None | B00028OH54 | — | 2026-10-10 |
| Micro Ingredients Berberine with Ceylon Cinnamon + Chromium (240 Veg Caps) | Micro Ingredients | 200 mcg chromium / 3 capsules | 80 | $23.99 | $0.30 | None | B0DW192P2Z | — | 2026-10-10 |
| Thorne Chromium Picolinate 500 mcg (60 Capsules) | Thorne | 500 mcg chromium / 1 capsule | 60 | $20.00 | $0.33 | Third-party certified | B000FGXNXA | — | 2026-10-10 |
| Pure Encapsulations Chromium (Picolinate) 500 mcg (60 Capsules) | Pure Encapsulations | 500 mcg chromium / 1 capsule | 60 | $19.50 | $0.33 | None | B00172YQHI | — | 2026-10-10 |

---

## Citicoline

**Clinical dose:** 250-500 mg/day for cognition trials (McGlade 2019: 250 or 500mg/day for 28 days in adolescent males; Nakazaki 2021: 500mg/day for 12 weeks in older adults); no RDA, AI, or upper limit exists
**Use cases:** focus, attention, and memory in healthy/near-healthy adults (modest evidence from two small industry-funded trials)
**Form verdict:** Cognizin-branded citicoline is what the cognition trials used (both Kyowa Hakko-funded); a standard 250mg retail capsule matches the lower trial dose.
**Main page:** https://verifiedsupplementdata.com/citicoline/
**Guides:** https://verifiedsupplementdata.com/citicoline/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nutricost CDP-Choline (Citicoline) 300 mg | Nutricost | 300 mg citicoline / 1 capsule | 60 | $16.95 | $0.28 | Not independently verified | B07HPB3ZYR | cheapest-generic | 2026-10-10 |
| Double Wood Supplements CDP Choline (Citicoline) 300 mg | Double Wood | 300 mg citicoline / 1 capsule | 60 | $19.95 | $0.33 | Brand states “pharmaceutical grade” and third-party-tested on label — not independently verified | B01A3BED8U | — | 2026-10-10 |
| Jarrow Formulas Citicoline CDP 250 mg | Jarrow Formulas | 250 mg citicoline / 1 capsule | 120 | $49.94 | $0.41 | Not independently verified | B004JO4EFU | — | 2026-10-10 |
| Life Extension Citicoline (Cognizin) 500 mg | Life Extension | 500 mg citicoline / 1 capsule | 60 | $25.50 | $0.43 | Cognizin® branded raw material (Kyowa Hakko) — no independent COA check | B000PC30Z0 | best-value | 2026-10-10 |
| Healthy Origins Cognizin (Citicoline) 250 mg | Healthy Origins | 250 mg citicoline / 1 capsule | 30 | $13.99 | $0.47 | Cognizin® branded raw material (Kyowa Hakko) — no independent COA check | B005P0SOL2 | cheapest-cognizin-sticker | 2026-10-10 |
| Nutricost Cognizin Citicoline 1000 mg (2×500 mg) | Nutricost | 1000 mg citicoline / 2 capsules | 30 | $34.95 | $1.17 | Cognizin® branded raw material (Kyowa Hakko) — no independent COA check | B0GZ8DX9G8 | — | 2026-10-10 |

---

## Citrus Bergamot

**Clinical dose:** 500-1,000 mg/day of bergamot polyphenolic fraction (BPF) covers most positive trials; the full range across the evidence base is 400-1,300 mg/day; a 500mg/day dose produced no effect in one independent trial; no government RDA or upper limit exists
**Use cases:** lipid marker support (results mixed; one trial found no effect in a specific population)
**Form verdict:** standardization matters more than the raw mg number — branded extracts (BPF, Bergavit, Brumex, BPE-C) use different extraction/standardization methods and aren't directly interchangeable milligram-for-milligram; an unstandardized 500-600mg product is a real caution since that dose failed in one trial
**Main page:** https://verifiedsupplementdata.com/citrus-bergamot/best-overall/
**Guides:** https://verifiedsupplementdata.com/citrus-bergamot/ · https://verifiedsupplementdata.com/citrus-bergamot/best-overall/ · https://verifiedsupplementdata.com/citrus-bergamot/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| tnvitamins Citrus Bergamot 2000mg | tnvitamins | 2000 mg bergamot extract / 1 capsule | 180 | $15.99 | $0.09 | None claimed | B0DD5G3P53 | — | 2026-10-10 |
| NusaPure Citrus Bergamot 600mg | NusaPure | 600 mg bergamot extract / 1 capsule | 200 | $27.20 | $0.13 | None claimed | B0CSDWP4CT | — | 2026-10-10 |
| Secret Element Citrus Bergamot Extract 1000mg | Secret Element | 1000 mg bergamot extract / 1 capsule | 120 | $23.97 | $0.20 | None claimed | B0BT6LQTG6 | — | 2026-10-10 |
| Nutricost Citrus Bergamot 1200mg (2x600mg Capsules) | Nutricost | 1200 mg bergamot extract / 2 capsules | 60 | $14.95 | $0.25 | None claimed | B0CCT1381Z | best-value | 2026-10-10 |
| Citrus Bergamot 150:1 Extract, 70% Polyphenols, Italian Sourced (1200mg) | Citrus Bergamot 150:1 | 1200 mg BPF extract / 1 capsule | 60 | $22.95 | $0.39 | None claimed | B0CLBQDM8K | best-standardization | 2026-10-10 |
| Double Wood Citrus Bergamot 1000mg (Bergamonte Standardization, NSF Certified) | Double Wood | 1000 mg bergamot extract / 1 capsule | 60 | $24.95 | $0.42 | NSF Certified | B07GCRHYM9 | — | 2026-10-10 |

---

## Cla

**Clinical dose:** 3.2 g/day active CLA (meta-analysis median dose)
**Use cases:** body composition (evidence modest)
**Form verdict:** most retail CLA is a ~50:50 isomer blend; the blend alone has not been shown to clear the metabolic-risk (glucose/insulin) signal seen with the isolated t10,c12 isomer
**Main page:** https://verifiedsupplementdata.com/cla/best-overall/
**Guides:** https://verifiedsupplementdata.com/cla/ · https://verifiedsupplementdata.com/cla/best-overall/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| BulkSupplements.com CLA Softgels 1000mg | BulkSupplements.com | 2000 mg CLA / 2 softgels | 150 | $24.97 | $0.17 | None stated | B00HAS5BUY | cheapest-per-gram | 2026-10-10 |
| Nutricost CLA 800mg | Nutricost | 2400 mg CLA / 3 softgels | 80 | $16.95 | $0.21 | None stated | B01IFF5114 | cheapest-per-day | 2026-10-10 |
| Zazzee High Potency CLA 3600 | Zazzee | 3600 mg CLA / 3 softgels | 60 | $19.97 | $0.33 | None stated | B01JZN8BZ8 | best-overall | 2026-10-10 |
| Sports Research CLA 1250mg (Tonalin) | Sports Research | 3750 mg CLA / 3 softgels (1 softgel 3x daily) | 60 | $26.95 | $0.45 | None stated | B01F2OG8B8 | — | 2026-10-10 |
| The Vitamin Shoppe Tonalin CLA 1000mg | The Vitamin Shoppe | 3000 mg CLA / 3 softgels (1 softgel 3x daily) | 60 | $34.94 | $0.58 | None stated | B071R8CMTF | — | 2026-10-10 |

---

## Cod Liver Oil

**Clinical dose:** no general wellness dose; dosing is really constrained by vitamin A intake, not an omega-3 target
**Use cases:** omega-3 and vitamin A/D intake
**Form verdict:** only buy a product that discloses its vitamin A content as a specific number; vague label claims can't be checked against the adult vitamin A upper limit
**Main page:** https://verifiedsupplementdata.com/cod-liver-oil/best-overall/
**Guides:** https://verifiedsupplementdata.com/cod-liver-oil/ · https://verifiedsupplementdata.com/cod-liver-oil/best-overall/ · https://verifiedsupplementdata.com/cod-liver-oil/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| NOW Foods Cod Liver Oil, 650mg, 250 Softgels | NOW Foods | 650 mg cod liver oil (softgel size) / 1 softgel | 250 | $10.94 | $0.05 | None claimed | B00028M1K2 | — | 2026-10-10 |
| NOW Foods Cod Liver Oil Extra Strength, 1,000mg, 180 Softgels | NOW Foods | 1000 mg cod liver oil (softgel size) / 1 softgel | 180 | $18.36 | $0.10 | None claimed | B00GIZVFVO | — | 2026-10-10 |
| Nordic Naturals Arctic Cod Liver Oil, Lemon, 180 Softgels | Nordic Naturals | 750 mg total omega-3 (EPA+DHA) / 2 softgels | 90 | $42.46 | $0.47 | None claimed | B002CQU59Q | — | 2026-10-10 |
| Carlson Norwegian Cod Liver Oil, Lemon, 500mL | Carlson | 1100 mg total omega-3 (EPA+DHA) / 1 tsp (5mL) | 100 | $59.09 | $0.59 | None claimed | B003B3P4PO | bulk-value-disclosed | 2026-10-10 |

---

## Collagen

**Clinical dose:** hydrolyzed collagen peptides at 2.5-15 g/day in studies of skin and muscle; undenatured type II collagen (UC-II) at just 40 mg/day for joints — a different mechanism, not interchangeable with the gram-scale peptide dose
**Use cases:** skin, joint comfort, muscle (with resistance training) — dose and type both depend on the goal
**Form verdict:** match type to goal before dose: Type I/III hydrolyzed peptides for skin/muscle, undenatured UC-II for joints; skin evidence is modest and heavily industry-funded, hair claims are weak
**Main page:** https://verifiedsupplementdata.com/supplements/collagen/
**Guides:** https://verifiedsupplementdata.com/collagen/ · https://verifiedsupplementdata.com/collagen/best-marine/ · https://verifiedsupplementdata.com/collagen/best-overall/ · https://verifiedsupplementdata.com/collagen/cost-per-dose/ · https://verifiedsupplementdata.com/collagen/dosage-guide/ · https://verifiedsupplementdata.com/collagen/for-skin/ · https://verifiedsupplementdata.com/collagen/for-women/ · https://verifiedsupplementdata.com/collagen/gummies/ · https://verifiedsupplementdata.com/collagen/liquid-vs-powder/ · https://verifiedsupplementdata.com/collagen/third-party-tested/ · https://verifiedsupplementdata.com/collagen/types-compared/ · https://verifiedsupplementdata.com/collagen/vital-proteins-vs-ancient-nutrition/ · https://verifiedsupplementdata.com/collagen/vital-proteins-vs-orgain/ · https://verifiedsupplementdata.com/collagen/vital-proteins-vs-sports-research/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Sports Research Collagen Peptides (Unflavored) | Sports Research | 11 g collagen / 1 scoop (11g) | 41 | $32.95 | $0.80 | Informed Sport, Non-GMO Verified (brand-stated; not confirmed in the public registry) | B00XQ2XGAA | best-value | 2026-10-10 |
| Garden of Life Grass Fed Collagen Beauty (Cranberry Pomegranate) | Garden of Life | 12 g collagen / 1 scoop (14g) | 20 | $25.89 | $1.29 | Non-GMO Verified | B07K4YDW8G | — | 2026-10-10 |
| Vital Proteins Collagen Peptides (Unflavored) | Vital Proteins | 20 g collagen / 2 scoops (20g) | 28 | $38.99 | $1.39 | NSF Certified for Sport | B00K6JUG4K | quality | 2026-10-10 |

---

## Collagen Gummies


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nature Made Collagen Gummies with Vitamin C and Zinc (60 gummies) | Nature Made | 100 mg collagen / 1 gummy | 60 | $7.97 | $0.13 | None found | B08FNKSPD2 | — | 2026-10-10 |
| NatureWise Collagen Gummies (60 gummies) | NatureWise | 200 mg collagen / 2 gummies | 30 | $12.99 | $0.43 | None found | B0CPKXW71L | — | 2026-10-10 |
| Nature's Truth Collagen Peptide Gummies (60 gummies) | Nature's Truth | 120 mg collagen / 2 gummies | 30 | $13.49 | $0.45 | None found | B07Y5BXN97 | — | 2026-10-10 |
| Micro Ingredients Multi Collagen Peptides Gummies (120 gummies) | Micro Ingredients | 200 mg collagen / 2 gummies | 60 | $28.99 | $0.48 | None found | B0DDWNGRKL | — | 2026-10-10 |
| OLLY Glowing Skin Gummies (50 gummies) | OLLY | 120 mg collagen / 2 gummies | 25 | $12.88 | $0.52 | None found | B01F7W03PM | — | 2026-10-10 |
| Nature Made Collagen Peptides + C Gummies (60 gummies) | Nature Made | 2500 mg collagen / 3 gummies | 20 | $16.99 | $0.85 | None found | B0GVGM8Y67 | — | 2026-10-10 |
| Consult Health Volumagen Collagen Gummies (120 gummies) | Consult Health | 2500 mg collagen / 4 gummies | 30 | $49.95 | $1.67 | None found | B0FRPL256Z | — | 2026-10-10 |

---

## Collagen Marine


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Micro Ingredients Marine Collagen Peptides (Unflavored, 1 lb) | Micro Ingredients | 12 g collagen / 2 scoops (12g) | 37 | $26.99 | $0.73 | None found (not on NSF Certified for Sport, NSF/ANSI 173, USP Verified, Informed Sport or Informed Choice; checked 2026-10-05) | B0CVTQ4G5Z | — | 2026-10-10 |
| Amandean Marine Collagen Peptides (Unflavored, 500 g) | Amandean | 10 g collagen / 1 scoop (10g) | 50 | $47.95 | $0.96 | None found (not on NSF Certified for Sport, NSF/ANSI 173, USP Verified, Informed Sport or Informed Choice; checked 2026-10-05) | B06XSZ7S1M | — | 2026-10-10 |
| Sports Research Marine Collagen Peptides (Unflavored, 12 oz) | Sports Research | 10 g collagen / 1 scoop (10g) | 34 | $34.95 | $1.03 | Informed Choice (listed as "Marine Collagen", October 2026 list) | B01M04S6JO | — | 2026-10-10 |
| Naked Marine Collagen Peptides (Unflavored, 567 g) | Naked Nutrition | 12 g collagen / 1 scoop (about 12g) | 47 | $49.99 | $1.06 | None found (not on NSF Certified for Sport, NSF/ANSI 173, USP Verified, Informed Sport or Informed Choice; checked 2026-10-05) | B0DJNCCSC1 | — | 2026-10-10 |
| Nutricost Marine Collagen Powder (Unflavored, 8 oz) | Nutricost | 10 g collagen / 1 scoop (10g) | 23 | $24.95 | $1.08 | None found (not on NSF Certified for Sport, NSF/ANSI 173, USP Verified, Informed Sport or Informed Choice; checked 2026-10-05) | B0CW7QWF36 | — | 2026-10-10 |
| Codeage Wild-Caught Marine Collagen Peptides (Unflavored, 15.87 oz) | Codeage | 9 g collagen / 1 scoop (about 9g) | 50 | $54.99 | $1.10 | NSF/ANSI 173 (Wild-Caught Marine Collagen Peptides, 1 scoop 9 g) | B07227WPWG | — | 2026-10-10 |
| Orgain Wild-Caught Marine Collagen Peptides (Unflavored, 8.5 oz) | Orgain | 12 g collagen / 1 scoop (12g) | 20 | $31.99 | $1.60 | None found (not on NSF Certified for Sport, NSF/ANSI 173, USP Verified, Informed Sport or Informed Choice; checked 2026-10-05) | B0DB97KGT7 | — | 2026-10-10 |
| Vital Proteins Marine Collagen (Unflavored, 7.8 oz) | Vital Proteins | 12 g collagen / 3 tbsp (12g) | 18 | $30.81 | $1.71 | None found (not on NSF Certified for Sport, NSF/ANSI 173, USP Verified, Informed Sport or Informed Choice; checked 2026-10-05) | B07D9WSWFR | — | 2026-10-10 |

---

## Collagen Vs


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Ancient Nutrition Multi Collagen Protein (Unflavored, 40 servings) | Ancient Nutrition | 10 g collagen / 1 scoop (10 g) | 40 | $39.90 | $1.00 | None | B0CT6NMTP9 | — | 2026-10-10 |
| Orgain Collagen Peptides (Unflavored, 1 lb) | Orgain | 20 g collagen / 2 scoops (20g) | 22 | $23.88 | $1.09 | None found (not on NSF Certified for Sport, NSF/ANSI 173, USP Verified, Informed Sport or Informed Choice; checked 2026-10-05) | B07BL69CD2 | — | 2026-10-10 |
| Vital Proteins Collagen Peptides (Unflavored, 14.3 oz) | Vital Proteins | 20 g collagen / 4 tbsp (20g) | 20 | $22.86 | $1.14 | NSF Certified for Sport | B09BP3P58Q | — | 2026-10-10 |

---

## Colostrum

**Clinical dose:** no established optimal dose; labels suggest 1-3 g/day but the human trials that showed effects used tens of grams per day (a gut-permeability study gave 60 g/day) — what matters more than powder grams is how much IgG the product actually discloses
**Use cases:** exercise recovery, gut comfort — benefits are largely unproven for beauty or general immunity
**Form verdict:** judge by disclosed IgG percentage, not milligrams of powder or sourcing story; three tracked brands (including ARMRA) do not disclose IgG at all, making their cost per active dose uncomputable
**Main page:** https://verifiedsupplementdata.com/colostrum/best-overall/
**Guides:** https://verifiedsupplementdata.com/colostrum/ · https://verifiedsupplementdata.com/colostrum/best-overall/ · https://verifiedsupplementdata.com/colostrum/dosage-guide/ · https://verifiedsupplementdata.com/colostrum/third-party-tested/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| NOW Foods Colostrum 500 mg (120 capsules) | NOW Foods | 500 mg colostrum / 1 capsule | 120 | $15.17 | $0.12 | GMP | B0013OQJNY | — | 2026-10-10 |
| Nutricost Colostrum 1000 mg — 15% IgG (60 servings) | Nutricost | 1000 mg colostrum / 2 capsules | 60 | $15.95 | $0.27 | ISO batch-tested | B01N79JO6Q | best-capsule | 2026-10-10 |
| Nutricost Colostrum Powder — 30% IgG (76 servings) | Nutricost | 3000 mg colostrum / 1 scoop (3 g) | 76 | $39.95 | $0.53 | ISO batch-tested | B09WJPFVVP | best-value | 2026-10-10 |
| Vitamatic Bovine Colostrum Powder — 50% IgG (60 servings) | Vitamatic | 2000 mg colostrum / 1 scoop (2 g) | 60 | $39.99 | $0.67 | None stated | B0CQCZCLDC | best-concentration | 2026-10-10 |
| ARMRA Colostrum — Unflavored (120-serving jar) | ARMRA | 1000 mg colostrum / 1/2 tsp | 120 | $119.99 | $1.00 | Contaminant-tested | B0CLBS4JBD | — | 2026-10-09 |
| Vital Proteins Bovine Colostrum — 40% IgG (30 servings) | Vital Proteins | 1350 mg colostrum / 3 capsules | 30 | $37.50 | $1.25 | None stated | B0DK41X3DY | best-mainstream | 2026-10-10 |
| Cowboy Colostrum — 1st Milking, Vanilla (40 servings) | Cowboy | 3000 mg colostrum / 1 scoop (3 g) | 40 | $69.00 | $1.73 | Batch-tested | B0D47VZ8GH | — | 2026-10-10 |

---

## Copper

**Clinical dose:** 900mcg (0.9mg)/day adult RDA
**Use cases:** general mineral adequacy; offsetting long-term high-dose zinc supplementation
**Form verdict:** most people don't need a standalone copper supplement — average US dietary intake from food alone already exceeds the RDA for both men and women
**Main page:** https://verifiedsupplementdata.com/copper/
**Guides:** https://verifiedsupplementdata.com/copper/ · https://verifiedsupplementdata.com/copper/does-copper-reverse-gray-hair/ · https://verifiedsupplementdata.com/copper/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Bronson Copper Glycinate 3mg | Bronson | 3 mg elemental copper / 1 tablet | 180 | $9.99 | $0.06 | None stated | B0DN6YZXB9 | bulk-value | 2026-10-10 |
| NOW Foods Copper Glycinate 3mg | NOW Foods | 3 mg elemental copper / 1 tablet | 120 | $7.93 | $0.07 | cGMP | B0BKGYNCZF | best-value | 2026-10-10 |
| Solgar Chelated Copper 2mg | Solgar | 2 mg elemental copper / 1 tablet | 100 | $7.72 | $0.08 | None stated | B00H4HH10E | — | 2026-10-10 |
| Dr. Mercola Copper Bisglycinate 2mg | Dr. Mercola | 2 mg elemental copper / 1 mini-tablet | 180 | $19.97 | $0.11 | None stated | B0CPJSVZFY | premium-alt | 2026-10-10 |
| Pure Encapsulations Copper Glycinate 2mg | Pure Encapsulations | 2 mg elemental copper / 1 capsule | 60 | $13.00 | $0.22 | NSF-audited GMP, hypoallergenic | B000H7Y6J2 | clean-label | 2026-10-10 |
| Thorne Copper Bisglycinate 2mg | Thorne | 2 mg elemental copper / 1 capsule | 60 | $19.00 | $0.32 | TRAACS-chelate (Thorne-stated); no independent COA verified for this build | B00HA044NM | trusted-brand | 2026-10-10 |

---

## Coq10

**Clinical dose:** 100-200 mg/day general maintenance; 300 mg/day (100 mg x3) used in some trials
**Use cases:** general/antioxidant maintenance
**Form verdict:** ubiquinol absorbs ~1.5-2x better than ubiquinone at the same mg, but the body interconverts the two forms and no outcome trial shows ubiquinol works better on any real endpoint
**Main page:** https://verifiedsupplementdata.com/supplements/coq10/
**Guides:** https://verifiedsupplementdata.com/coq10/ · https://verifiedsupplementdata.com/coq10/200-mg/ · https://verifiedsupplementdata.com/coq10/best-overall/ · https://verifiedsupplementdata.com/coq10/dosage-guide/ · https://verifiedsupplementdata.com/coq10/qunol-vs-doctors-best/ · https://verifiedsupplementdata.com/coq10/qunol-vs-life-extension/ · https://verifiedsupplementdata.com/coq10/ubiquinol-vs-ubiquinone/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Doctor's Best High Absorption CoQ10 200mg with BioPerine | Doctor's Best | 200 mg / 1 veggie capsule | 60 | $18.99 | $0.32 | None | B0035C5XVQ | budget | 2026-10-10 |
| Qunol Ultra CoQ10 100mg (Water & Fat Soluble) | Qunol | 100 mg / 1 softgel | 120 | $29.97 | $0.49 | None | B0055OUOQQ | best-value | 2026-10-10 |
| NOW Foods Ubiquinol 200mg, 60 Softgels | NOW Foods | 200 mg / 1 softgel | 60 | $48.39 | $0.81 | None | B0096LXIGC | — | 2026-10-10 |
| Life Extension Super Ubiquinol CoQ10 with Enhanced Mitochondrial Support 100mg | Life Extension | 100 mg / 1 softgel | 60 | $32.81 | $1.09 | None | B00H4HT0EE | — | 2026-10-10 |
| Jarrow Formulas QH-Absorb Ubiquinol 100mg | Jarrow Formulas | 100 mg / 1 softgel | 120 | $66.94 | $1.12 | None | B004VCOOUU | quality | 2026-10-10 |

---

## Coq10 200mg


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Puritan's Pride CoQ10 200 mg Rapid Release (120 softgels) | Puritan's Pride | 200 mg / 1 softgel | 120 | $23.83 | $0.20 | None | B004R64UTU | budget | 2026-10-10 |
| Nature Made CoQ10 200 mg Softgels (80 softgels) | Nature Made | 200 mg / 1 softgel | 80 | $20.99 | $0.26 | USP Verified (brand-stated; not confirmed in the public registry) | B004GJVD4I | usp | 2026-10-10 |
| Nutricost CoQ10 200 mg (60 vegetarian capsules) | Nutricost | 200 mg / 1 capsule | 60 | $15.95 | $0.27 | None stated (third-party tested claim) | B091M586SM | — | 2026-10-10 |
| Qunol Ultra CoQ10 200 mg (90 softgels) | Qunol | 200 mg / 1 softgel | 90 | $39.99 | $0.44 | None | B0CX37FXZF | — | 2026-10-10 |
| Qunol Extra Strength Ubiquinol 200 mg (60 softgels) | Qunol | 200 mg / 1 softgel | 60 | $39.99 | $0.67 | None | B073VK5TP4 | ubiquinol-budget | 2026-10-10 |

---

## Cordyceps

**Clinical dose:** Cs-4 ~1-3 g/day (exercise trials); C. militaris blends ~4 g/day — no consensus dose across products
**Use cases:** energy, exercise performance, endurance
**Form verdict:** form (fruiting body vs mycelium-on-grain) matters more than milligrams — only 2 of 11 tracked products disclose a beta-glucan %, the actual active
**Main page:** https://verifiedsupplementdata.com/lions-mane/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Terrasoul Superfoods Organic Cordyceps 4:1 Extract Powder (5.5 oz) | Terrasoul Superfoods | 1000 mg cordyceps extract / ~1 g scoop | 150 | $14.99 | $0.10 | USDA Organic | B0DLLKH6LG | — | 2026-10-10 |
| NOW Cordyceps 750 mg, Cordyceps sinensis (90 Veg Capsules) | NOW Foods | 750 mg cordyceps mycelium / 1 capsule (750 mg) | 90 | $11.10 | $0.13 | cGMP (NPA) | B0045X9VQC | — | 2026-10-10 |
| Swanson Cordyceps 600 mg, Cultured Mycelia (120 Capsules) | Swanson | 600 mg cordyceps mycelium / 1 capsule (600 mg) | 120 | $19.39 | $0.16 | cGMP | B001PMKU8Y | — | 2026-10-10 |
| Double Wood Cordyceps Sinensis Extract 1000 mg (210 Capsules) | Double Wood | 1000 mg cordyceps extract / 2 capsules (1,000 mg) | 105 | $19.95 | $0.19 | Third-party tested | B0889ZS9ST | — | 2026-10-10 |
| Nutricost Cordyceps 1100 mg (90 Capsules) | Nutricost | 1100 mg cordyceps / 2 capsules (1,100 mg) | 45 | $14.95 | $0.33 | CCOF made-with-organic | B08JH8MNCH | — | 2026-10-10 |
| Nootropics Depot Cordyceps 10:1 Whole Fruiting Body Extract 250 mg (60 Capsules) | Nootropics Depot | 250 mg cordyceps fruiting body (10:1) / 1 capsule (250 mg 10:1) | 60 | $26.99 | $0.45 | Third-party COA | B079ZCR55K | — | 2026-10-10 |
| Real Mushrooms Cordyceps-M Fruiting Body Extract (120 Capsules) | Real Mushrooms | 1000 mg cordyceps fruiting body / 2 capsules (1,000 mg) | 60 | $34.95 | $0.58 | NSF Certified for Sport (listing 1822940: 120- and 300-capsule packs, US; checked 2026-10-01) | B0793FB3LQ | — | 2026-10-10 |
| FreshCap Organic Cordyceps 10:1 Fruiting Body Extract (120 Capsules) | FreshCap | 1000 mg cordyceps fruiting body / 2 capsules (1,000 mg) | 60 | $39.99 | $0.67 | Third-party tested; CCOF Organic | B081DBVLVQ | best-value | 2026-10-10 |
| Longevity Botanicals Organic Cordyceps Militaris Fruiting Body (120 Capsules) | Longevity Botanicals | 900 mg cordyceps fruiting body / 3 capsules (900 mg) | 40 | $29.99 | $0.75 | Organic; third-party | B07QYB68MZ | — | 2026-10-10 |
| Om Mushroom Superfood Cordyceps (90 Capsules) | Om Mushrooms | 2000 mg cordyceps mycelium + oats / 3 capsules (2,000 mg) | 30 | $24.99 | $0.83 | USDA Organic; third-party (purity) | B07MCJP77T | — | 2026-10-10 |
| Host Defense Cordyceps, Myceliated Brown Rice (60 Capsules) | Host Defense | 1000 mg cordyceps mycelium + rice / 2 capsules (1,000 mg) | 30 | $25.46 | $0.85 | USDA Organic (not potency-tested) | B003FIGZV2 | — | 2026-10-10 |

---

## Cranberry

**Clinical dose:** ~36 mg of A-type proanthocyanidin (PAC) per day, measured by the BL-DMAC method, is the level used in many studies
**Use cases:** urinary tract health support
**Form verdict:** look for a disclosed A-type PAC figure (by BL-DMAC) on the label; most brands print an 'equivalent' weight, Pacran, or concentrate figure instead, which cannot be used to verify the actual PAC dose
**Main page:** https://verifiedsupplementdata.com/cranberry/best-overall/
**Guides:** https://verifiedsupplementdata.com/cranberry/ · https://verifiedsupplementdata.com/cranberry/best-overall/ · https://verifiedsupplementdata.com/cranberry/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nature's Bounty Cranberry with Vitamin C (250 Softgels) | Nature's Bounty | 420 mg / 1 softgel | 250 | $12.99 | $0.06 | None | B002Y27JRE | — | 2026-10-10 |
| AZO Cranberry Pro 600 mg Pacran (100 Softgels) | AZO | 600 mg Pacran / 1 softgel/day | 100 | $14.49 | $0.14 | None | B0C64HD5ZM | — | 2026-10-10 |
| Micro Ingredients D-Mannose 1,300 mg with Cranberry + Probiotics (240 Veg Capsules) | Micro Ingredients | 1300 mg D-mannose / 1 serving | 120 | $23.99 | $0.20 | None | B0DLLMC7DS | — | 2026-10-10 |
| Solaray CranActin Cranberry Extract 400 mg (120 VegCaps) | Solaray | 400 mg / 1 vegcap/day | 120 | $25.99 | $0.22 | None | B00020I1XG | — | 2026-10-10 |
| AZO Cranberry 500 mg Pacran (50 servings) | AZO | 500 mg / 2 softgels | 50 | $13.32 | $0.27 | None | B004RR1FF6 | — | 2026-10-10 |
| Nature Made Cranberry 500 mg with Vitamin C (60 Capsules) | Nature Made | 500 mg / 1 capsule/day | 60 | $17.19 | $0.28 | None | B0CTNWQ3BZ | — | 2026-10-10 |
| AZO Cranberry Urinary Tract Health Gummies (72 Gummies) | AZO | 500 mg / 2 gummies | 36 | $12.49 | $0.35 | None | B00U10LW74 | — | 2026-10-10 |
| NOW Mannose Cranberry (120 Veg Capsules) | NOW Foods | 250 mg / 2 capsules | 60 | $20.95 | $0.35 | None | B0C3KYTHST | — | 2026-10-10 |
| Theralogix TheraCran One (90 Capsules) | Theralogix | 36 mg PAC / 1 capsule/day | 90 | $95.35 | $1.06 | NSF Certified | B06WGSJG33 | best-value | 2026-10-10 |
| Utiva Cranberry PACs 36 mg (90 Capsules) | Utiva | 36 mg PAC / 1 capsule/day | 90 | $109.99 | $1.22 | None | B07PQYS14V | — | 2026-10-10 |
| Theralogix TheraCran Max — Cranberry + D-Mannose (90-Day Supply) | Theralogix | 36 mg PAC / 2 capsules/day | 90 | $121.36 | $1.35 | NSF Certified (brand-stated; not confirmed in the public registry) | B0DT7M6YTH | — | 2026-10-10 |
| ellura 36 mg PAC Cranberry (90 Capsules) | ellura | 36 mg PAC / 1 capsule/day | 90 | $129.99 | $1.44 | None | B0F5YY3WG2 | — | 2026-10-10 |

---

## Creatine

**Clinical dose:** 3-5 g/day creatine monohydrate, every day including rest days
**Use cases:** athletic performance / muscle building (resistance training)
**Form verdict:** plain monohydrate is the only form with deep evidence behind it; fancier forms (e.g. HCl) cost more without a demonstrated benefit
**Main page:** https://verifiedsupplementdata.com/supplements/creatine/
**Guides:** https://verifiedsupplementdata.com/creatine/ · https://verifiedsupplementdata.com/creatine/5-grams/ · https://verifiedsupplementdata.com/creatine/best-for-muscle-building/ · https://verifiedsupplementdata.com/creatine/best-for-women/ · https://verifiedsupplementdata.com/creatine/best-overall/ · https://verifiedsupplementdata.com/creatine/capsules/ · https://verifiedsupplementdata.com/creatine/cost-per-dose/ · https://verifiedsupplementdata.com/creatine/creapure/ · https://verifiedsupplementdata.com/creatine/dosage-guide/ · https://verifiedsupplementdata.com/creatine/for-brain/ · https://verifiedsupplementdata.com/creatine/for-men/ · https://verifiedsupplementdata.com/creatine/for-seniors/ · https://verifiedsupplementdata.com/creatine/for-women/ · https://verifiedsupplementdata.com/creatine/forms-compared/ · https://verifiedsupplementdata.com/creatine/gummies/ · https://verifiedsupplementdata.com/creatine/momentous-vs-thorne/ · https://verifiedsupplementdata.com/creatine/now-foods-vs-thorne/ · https://verifiedsupplementdata.com/creatine/nutricost-vs-bulksupplements/ · https://verifiedsupplementdata.com/creatine/nutricost-vs-thorne/ · https://verifiedsupplementdata.com/creatine/optimum-nutrition-vs-nutricost/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| NOW Sports Creatine Monohydrate Powder (600g) | NOW Foods | 5 g / 1 rounded tsp (5g) | 120 | $24.25 | $0.19 | NPA GMP Certified | B0013OUOBM | budget | 2026-10-10 |
| BulkSupplements Micronized Creatine Monohydrate (500g) | BulkSupplements.com | 5 g / 1 scoop (5g) | 100 | $20.97 | $0.21 | cGMP Facility, Third-Party Tested | B00E9M4XFI | — | 2026-10-10 |
| Optimum Nutrition Micronized Creatine Monohydrate (60 servings) | Optimum Nutrition | 5 g / 1 scoop (5g) | 60 | $17.97 | $0.30 | Banned Substance Tested | B002DYIZEE | best-value | 2026-10-10 |
| Momentous Creatine Monohydrate (90 servings) | Momentous | 5 g / 1 scoop (5g) | 90 | $42.99 | $0.48 | NSF Certified for Sport, Informed Sport | B085Z9P87K | — | 2026-10-10 |
| Thorne Creatine (90 servings) | Thorne | 5 g / 1 scoop (5g) | 90 | $44.00 | $0.49 | NSF Certified for Sport | B07978VPPH | quality | 2026-10-10 |
| Transparent Labs Creatine HMB (30 servings) | Transparent Labs | 5 g / 1 scoop (12.7g) | 30 | $49.99 | $1.67 | Informed Choice Certified | B078JZQ5QL | — | 2026-10-10 |

---

## Creatine Capsules


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Micro Ingredients Creatine Monohydrate Capsules (500 capsules) | Micro Ingredients | 5 g / 7 capsules (5 g) | 71 | $29.99 | $0.43 | None found (not on NSF Certified for Sport, NSF/ANSI 173, USP Verified, Informed Sport or Informed Choice; checked 2026-10-05) | B0B9289VLY | — | 2026-10-10 |
| Nutricost Micronized Creatine Monohydrate Capsules (500 capsules) | Nutricost | 3 g / 4 capsules (3 g) | 125 | $32.95 | $0.44 | None found (not on NSF Certified for Sport, NSF/ANSI 173, USP Verified, Informed Sport or Informed Choice; checked 2026-10-05) | B01IW245EY | — | 2026-10-10 |
| Pristine's Creatine Monohydrate Capsules (300 capsules) | Pristine's | 3 g / 4 capsules (3 g) | 75 | $25.99 | $0.58 | NSF/ANSI 173 (registry listing: Pristine's Creatine Monohydrate, FedPharm Inc.) | B0CT68RPXK | — | 2026-10-10 |
| Animal Ready-To-Go Creatine Capsules (300 capsules) | Animal | 2.5 g / 2 capsules (2.5 g) | 150 | $43.94 | $0.59 | NSF/ANSI 173 (registry listing: Animal Ready-To-Go Creatine Capsules, Universal Nutrition) | B0BQ1FZJS6 | — | 2026-10-10 |
| Vega Creatine Monohydrate Capsules (180 capsules) | Vega | 5 g / 6 capsules (5 g) | 30 | $18.44 | $0.61 | Informed Choice (listed as "Creatine Monohydrate Capsules", October 2026 list) | B0FXGPYGFG | — | 2026-10-10 |
| NOW Sports Creatine Monohydrate 750 mg (120 veg capsules) | NOW Foods | 4.5 g / 6 capsules (4.5 g) | 20 | $11.62 | $0.65 | Informed Sport (listed as "NOW Sports Creatine Monohydrate Capsules") | B0018OADEA | — | 2026-10-10 |
| Optimum Nutrition Micronized Creatine Capsules (300 capsules) | Optimum Nutrition | 2.5 g / 2 capsules (2.5 g) | 150 | $49.99 | $0.67 | Informed Choice (listed as "Micronized Creatine Capsules", October 2026 list) | B000GIQS0W | — | 2026-10-10 |
| Jacked Factory Creatine Monohydrate Capsules (150 capsules) | Jacked Factory | 3 g / 3 capsules (3 g) | 50 | $19.99 | $0.67 | Informed Choice (listed as "Creatine Monohydrate Capsules", October 2026 list) | B0C8K2Z6SH | — | 2026-10-10 |
| Sports Research Creatine Monohydrate Capsules (120 veggie capsules) | Sports Research | 5 g / 4 capsules (5 g) | 30 | $29.95 | $1.00 | Informed Sport (listed as "Creatine Monohydrate Capsules", certified 19-Feb-2025) | B0DXRZ51DZ | — | 2026-10-10 |

---

## Creatine Creapure


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| MaxOut360 Creapure Creatine Monohydrate (60 servings, unflavored) | MaxOut360 | 5 g / 1 scoop (5 g) | 60 | $22.99 | $0.38 | NSF/ANSI 173 (registry listing: MaxOut360 Creapure Creatine Monohydrate - Unflavored) | B0FF3628S4 | — | 2026-10-10 |
| Ascent Clean Creatine, Creapure (100 servings, unflavored) | Ascent | 5 g / 1 scoop (5 g) | 100 | $39.99 | $0.40 | Informed Sport (registry listing: Clean Creatine) | B0FLF8JZQD | creapure | 2026-10-10 |
| Sports Research Creatine Monohydrate, Creapure (90 servings, unflavored) | Sports Research | 5 g / 1 scoop (5 g) | 90 | $36.95 | $0.41 | NSF Certified for Sport (registry listing: Creapure Creatine Monohydrate Unflavored, 450 g) | B0G16B43WK | — | 2026-10-10 |
| CLEAN Creatine, Creapure (90 servings, unflavored) | CLEAN | 5 g / 1 scoop (5 g) | 90 | $36.99 | $0.41 | Brand claim only (says NSF; not found on NSF lists) | B0C8MCRKFB | — | 2026-10-10 |
| Bare Performance Nutrition Creatine Monohydrate, Creapure (100 servings, unflavored) | Bare Performance Nutrition | 5 g / 1 scoop (5 g) | 100 | $44.99 | $0.45 | NSF Certified for Sport (registry listing: Creatine Monohydrate, 150/300/500 g) | B0H73BJB66 | creapure-nsf | 2026-10-10 |

---

## Creatine Gummies


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Force Factor Creatine Monohydrate Gummies (150 gummies) | Force Factor | 5000 mg creatine monohydrate / 5 gummies | 30 | $29.99 | $1.00 | NSF Certified for Sport | B0FWV6LC4B | best-value | 2026-10-10 |
| Effective Nutra Creatine Monohydrate Gummies (90 gummies) | Effective Nutra | 5000 mg creatine monohydrate / 5 gummies | 18 | $24.95 | $1.39 | None stated | B0CNQ91C2G | — | 2026-10-10 |
| Create Creatine Monohydrate Gummies (90 gummies) | Create Wellness | 4500 mg creatine monohydrate / 3 gummies | 30 | $49.98 | $1.67 | NSF Certified for Sport | B0CSKQVCWF | quality | 2026-10-10 |

---

## Creatine Plain


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nutricost Micronized Creatine Monohydrate (500 g, unflavored) | Nutricost | 5 g / 1 scoop (5 g) | 100 | $21.50 | $0.21 | None stated | B00GL2HMES | budget | 2026-10-10 |
| Naked Creatine, Micronized Monohydrate (500 g, unflavored) | Naked Nutrition | 5 g / 1 scoop (5 g) | 100 | $21.99 | $0.22 | NSF/ANSI 173 | B0B9YMNYWK | certified | 2026-10-10 |
| Nutricost Creapure Creatine Monohydrate (500 g) | Nutricost | 5 g / 1 scoop (5 g) | 100 | $37.95 | $0.38 | Creapure (AlzChem) | B06WVKGGJB | creapure | 2026-10-10 |

---

## Curcumin

**Clinical dose:** form-dependent, since plain curcumin is barely absorbed: standardized 95% curcuminoid extract ~1,500-2,000 mg/day (with piperine or a fatty meal), phytosome (Meriva) 500-1,000 mg/day, or nanoparticle (Theracurmin) just 150-210 mg/day
**Use cases:** joint comfort, general antioxidant support; other uses are preliminary
**Form verdict:** form matters more than milligrams — plain turmeric/curcumin is poorly absorbed; higher-absorption forms (piperine, phytosome, nanoparticle) are disproportionately represented in the rare but real liver-injury reports
**Main page:** https://verifiedsupplementdata.com/supplements/curcumin/
**Guides:** https://verifiedsupplementdata.com/curcumin/ · https://verifiedsupplementdata.com/curcumin/best-overall/ · https://verifiedsupplementdata.com/curcumin/bioavailability/ · https://verifiedsupplementdata.com/curcumin/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nature Made Turmeric Curcumin 500mg | Nature Made | 500 mg / 1 capsule | 120 | $13.79 | $0.11 | USP Verified (brand-stated; not confirmed in the public registry) | B074QHCL9Z | best-value | 2026-10-10 |
| NOW Supplements CurcuBrain 400mg Longvida | NOW Foods | 400 mg / 1 capsule | 50 | $18.36 | $0.37 | None | B00K31PXSU | — | 2026-10-10 |
| Meriva Curcumin Phytosome by Thorne | Thorne | 500 mg / 2 capsules | 30 | $36.00 | $1.20 | NSF Certified for Sport | B0797FSF89 | quality | 2026-10-10 |

---

## D Mannose

**Clinical dose:** 2 grams per day, dissolved as powder in ~200 mL water, once daily — the dose used in two controlled studies (Kranjcec 2014 and MERIT 2024)
**Use cases:** urinary tract health support — not a treatment for an active infection
**Form verdict:** no RDA or upper limit exists (not an essential nutrient); most capsules are 500 mg, so 4 capsules are needed to actually reach the trial dose — a common under-dosing mistake
**Main page:** https://verifiedsupplementdata.com/d-mannose/best-overall/
**Guides:** https://verifiedsupplementdata.com/d-mannose/ · https://verifiedsupplementdata.com/d-mannose/best-overall/ · https://verifiedsupplementdata.com/d-mannose/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| NOW Foods D-Mannose 500 mg (120 Veg Capsules) | NOW Foods | 500 mg / 1 capsule | 120 | $12.73 | $0.11 | None | B000JN4CR0 | — | 2026-10-10 |
| Nutricost D-Mannose Powder (100 g / 50 Servings) | Nutricost | 2000 mg / 1 scoop (2 g)/day | 50 | $14.95 | $0.30 | None | B077SN86N9 | best-value | 2026-10-10 |
| NOW Foods D-Mannose Powder, Non-GMO (6 oz / ~85 Servings) | NOW Foods | 2000 mg / 1 scoop (~2 g)/day | 85 | $27.90 | $0.33 | None | B00JWKDF6A | — | 2026-10-10 |
| Solaray D-Mannose with CranActin (60 VegCaps) | Solaray | 1000 mg / 2 capsules/day | 30 | $28.79 | $0.96 | None | B0040DN7VM | — | 2026-10-10 |

---

## Dhea


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nutricost DHEA 25 mg (240 capsules) | Nutricost | 25 mg DHEA / 1 capsule | 240 | $14.95 | $0.06 | None stated | B08GQB2JSX | budget | 2026-10-10 |
| Life Extension DHEA 25 mg Dissolve-in-Mouth (100 tablets) | Life Extension | 25 mg DHEA / 1 tablet | 100 | $10.50 | $0.10 | None stated | B000PC318Q | best-overall | 2026-10-10 |
| Life Extension DHEA 50 mg (60 capsules) | Life Extension | 50 mg DHEA / 1 capsule | 60 | $13.50 | $0.23 | None stated | B000GTBLW6 | trial-dose | 2026-10-10 |
| Pure Encapsulations DHEA 10 mg (60 capsules) | Pure Encapsulations | 10 mg DHEA / 1 capsule | 60 | $16.00 | $0.27 | None stated | B00369D7JI | low-dose | 2026-10-10 |

---

## Digestive Enzymes

**Clinical dose:** no single dose across this category — lactase is dosed in FCC/ALU units taken with the first bite of dairy; alpha-galactosidase was tested at 300 and 1200 GalU against a bean meal, with 1200 GalU showing the clearer effect, taken at the start of the meal; broad-spectrum blends are labeled only in mg with no activity-unit disclosure
**Use cases:** dairy digestion (lactase); bean/legume-related gas (alpha-galactosidase)
**Form verdict:** match the unit system to the enzyme, not the milligrams — a mg-only label on a broad-spectrum blend cannot be compared for real potency across brands; any diagnosed digestive condition needs a doctor, not a supplement-aisle product
**Main page:** https://verifiedsupplementdata.com/digestive-enzymes/
**Guides:** https://verifiedsupplementdata.com/digestive-enzymes/ · https://verifiedsupplementdata.com/digestive-enzymes/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Beano Extra Strength (100ct) | Beano | 1 tablet / 1 tablet at the start of the meal (1-3 by meal size, per label) | 100 | $11.98 | $0.12 | None claimed | B00ANL4WMI | targeted-bean-legume-gas | 2026-10-10 |
| Nutricost Digestive Enzymes 620mg (120ct) | Nutricost | 620 mg blend / 1 capsule | 120 | $19.95 | $0.17 | Vegetarian-friendly (label claim) | B074P9J29V | broad-spectrum-budget | 2026-10-10 |
| Lactaid Fast Act Caplets (96ct) | Lactaid | 9000 FCC lactase / 1 caplet, with the first bite of dairy | 96 | $20.54 | $0.22 | None claimed | B07XJVNNM1 | targeted-lactose-intolerance | 2026-10-10 |
| NOW Super Enzymes (90ct) | NOW Foods | 1 capsule / 1 capsule | 90 | $25.49 | $0.29 | None claimed | B000Y8AT0O | broad-spectrum-mainstream | 2026-10-10 |
| Pure Encapsulations Digestive Enzymes Ultra (180ct) | Pure Encapsulations | 391 mg blend / 2 capsules | 90 | $66.50 | $0.74 | Vegetarian (label claim) | B0016X8Y0S | broad-spectrum-premium | 2026-10-10 |

---

## Elderberry

**Clinical dose:** syrup 15 mL up to 4x/day (short course); standardized extract ~600-900 mg/day
**Use cases:** immune support (mixed, low-certainty evidence)
**Form verdict:** Prefer a disclosed anthocyanin % (best) or extract ratio; most products give no verifiable standardization — only 1 of 13 products discloses an anthocyanin %
**Main page:** https://verifiedsupplementdata.com/elderberry/best-overall/
**Guides:** https://verifiedsupplementdata.com/elderberry/ · https://verifiedsupplementdata.com/elderberry/best-overall/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| NOW Elderberry 500 mg 10:1 Concentrate (120 Capsules) | NOW Foods | 500 mg extract / 1 capsule | 120 | $16.80 | $0.14 | None | B082VXPVVL | — | 2026-10-10 |
| Solaray Elderberry 450 mg (100 Capsules) | Solaray | 450 mg / 1 capsule | 100 | $14.78 | $0.15 | None | B0011FWFE2 | — | 2026-10-10 |
| Zhou Elder-Mune Elderberry Gummies (2 x 60 Gummies) | Zhou | 125 mg / 2 gummies | 60 | $14.59 | $0.24 | None | B0FGN9CTYB | — | 2026-10-10 |
| NutriFlair Sambucus Elderberry 5-in-1 (120 Capsules) | NutriFlair | 1000 mg equiv / 2 capsules | 60 | $17.97 | $0.30 | None | B0876SH632 | — | 2026-10-10 |
| Nature's Truth Black Elderberry Gummies 4:1 (50 Gummies) | Nature's Truth | 400 mg equiv / 2 gummies | 25 | $7.99 | $0.32 | None | B07Y5KMM92 | — | 2026-10-10 |
| Nature's Bounty Elderberry Gummies with Vitamins & Zinc (70 Gummies) | Nature's Bounty | 100 mg / 2 gummies | 35 | $12.77 | $0.37 | None | B07PXTBCB4 | — | 2026-10-10 |
| Havasu Black Elderberry 400 mg (60 Capsules) | Havasu | 400 mg extract / 2 capsules | 30 | $17.99 | $0.60 | None | B07CJW3511 | — | 2026-10-10 |
| Terry Naturally ViraPro Elderberry (60 Tablets) | Terry Naturally | 300 mg extract / 1 tablet | 60 | $45.56 | $0.76 | None | B008YQIZ7M | — | 2026-10-10 |
| Nature's Way Sambucus Elderberry Syrup (8 oz) | Nature's Way | 1600 mg / 2 tsp | 24 | $19.79 | $0.82 | None | B001E8GO6G | — | 2026-10-10 |
| Sambucol Black Elderberry Syrup Original (7.8 oz) | Sambucol | 1670 mg berries / 2 tsp | 23 | $18.95 | $0.83 | None | B001ESA36I | — | 2026-10-10 |
| Gaia Herbs Black Elderberry (120 Vegan Capsules) | Gaia Herbs | 158 mg extract / 2 capsules | 60 | $56.69 | $0.94 | USDA Organic | B07L54SCPS | — | 2026-10-10 |
| Gaia Herbs Black Elderberry Syrup (3 oz) | Gaia Herbs | 2145 mg concentrate / 1 tsp | 18 | $22.94 | $1.28 | USDA Organic | B0036THLOA | — | 2026-10-10 |
| Emergen-C Elderberry Gummies (36 Count) | Emergen-C | 50 mg / 3 gummies | 12 | $15.99 | $1.33 | None | B08B5H281D | — | 2026-10-10 |

---

## Electrolytes

**Clinical dose:** 300-600 mg sodium/hour during exercise >60 min; 3,000-5,000 mg/day on keto/fasting; most people already meet the ~1,500 mg/day Adequate Intake from food
**Use cases:** sodium/electrolyte needs for exercise and keto/fasting — most sedentary people need none
**Form verdict:** Most people already get enough sodium from food and don't need a supplement; when needed, use zero-sugar high-sodium formulas for exercise/keto.
**Main page:** https://verifiedsupplementdata.com/electrolytes/best-overall/
**Guides:** https://verifiedsupplementdata.com/electrolytes/ · https://verifiedsupplementdata.com/electrolytes/best-overall/ · https://verifiedsupplementdata.com/electrolytes/cost-per-dose/ · https://verifiedsupplementdata.com/electrolytes/dosage-guide/ · https://verifiedsupplementdata.com/electrolytes/formulas-compared/ · https://verifiedsupplementdata.com/electrolytes/gatorade-alternatives/ · https://verifiedsupplementdata.com/electrolytes/lmnt-alternatives/ · https://verifiedsupplementdata.com/electrolytes/lmnt-vs-liquid-iv/ · https://verifiedsupplementdata.com/electrolytes/powder/ · https://verifiedsupplementdata.com/electrolytes/third-party-tested/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nuun Sport Electrolyte Tablets — Lemon Lime (40 tablets) | Nuun | 300 mg sodium / 1 tablet | 40 | $21.28 | $0.53 | Informed Choice | B018NZJE64 | best-daily | 2026-10-10 |
| Ultima Replenisher Electrolyte Powder (90 servings) | Ultima | 55 mg sodium / 1 scoop | 90 | $47.99 | $0.53 | None | B01IIGL894 | best-value | 2026-10-10 |
| SaltStick FastChews Chewable Electrolytes — Lemon Lime (60 chews / 30 servings) | SaltStick | 100 mg sodium / 2 chewable tablets | 30 | $19.95 | $0.67 | Informed Choice | B01IUVIN36 | best-certified-chew | 2026-10-10 |
| Transparent Labs Hydrate — Tropical Punch (40 servings) | Transparent Labs | 500 mg sodium / 1 scoop | 40 | $29.99 | $0.75 | NSF Certified for Sport | B0CFHLBCWM | best-tested-value | 2026-10-10 |
| DripDrop ORS Hydration — Watermelon (32 sticks) | DripDrop | 330 mg sodium / 1 stick pack | 32 | $32.99 | $1.03 | None | B07X5MX1LW | — | 2026-10-10 |
| Liquid I.V. Sugar-Free Hydration Multiplier — Lemon Lime (14 sticks) | Liquid I.V. | 530 mg sodium / 1 stick pack | 14 | $20.36 | $1.45 | None | B0BQ4G7LY8 | — | 2026-10-10 |
| LMNT Recharge Electrolytes — Lemonade Salt (30 sticks) | LMNT | 1000 mg sodium / 1 stick pack | 30 | $45.00 | $1.50 | None | B0F8R8D9M7 | best-high-sodium | 2026-10-10 |
| Liquid I.V. Hydration Multiplier — Lemon Lime (16 sticks) | Liquid I.V. | 500 mg sodium / 1 stick pack | 16 | $24.00 | $1.50 | None | B01IT9NLHW | best-ors-style | 2026-10-10 |
| Redmond Re-Lyte Hydration — Strawberry Lemonade (30 sticks) | Redmond | 810 mg sodium / 1 stick pack | 30 | $45.94 | $1.53 | Informed Choice | B097QF7HVH | — | 2026-10-10 |
| Pedialyte AdvancedCare Plus Powder Packets (18 ct) | Pedialyte | 650 mg sodium / 1 packet in 16 fl oz water | 18 | $28.98 | $1.61 | None | B079YBV7Q9 | — | 2026-10-10 |
| BUBS Naturals Hydrate or Die Electrolytes (20 sticks) | BUBS Naturals | 650 mg sodium / 1 stick pack | 20 | $37.00 | $1.85 | NSF Certified for Sport | B0DQB8PXKS | best-nsf-certified | 2026-10-10 |

---

## Essential Amino Acids

**Clinical dose:** 8-10 g/day is the typical retail dose (ISSN's own MPS trigger is 1.5-3g, plateau ~15-18g/day)
**Use cases:** muscle protein synthesis support (resistance training, older adults with anabolic resistance)
**Form verdict:** Whey already supplies ~45-50% EAA by weight, so a standalone EAA product fills a gap most adequately-fed people don't have; leucine-enriched blends help older/anabolic-resistant adults specifically, not everyone
**Main page:** https://verifiedsupplementdata.com/essential-amino-acids/best-overall/
**Guides:** https://verifiedsupplementdata.com/essential-amino-acids/ · https://verifiedsupplementdata.com/essential-amino-acids/best-overall/ · https://verifiedsupplementdata.com/essential-amino-acids/third-party-tested/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| BulkSupplements Essential Amino Acids Powder (500 g, Unflavored) | BulkSupplements | 10000 g EAA / 1 scoop (10 g) | 50 | $23.97 | $0.48 | None stated | B07VJK13WD | best-value | 2026-10-10 |
| Nutricost EAA Powder, Unflavored (30 Servings) | Nutricost | 8000 g EAA / 1 scoop (8 g) | 30 | $17.95 | $0.60 | None stated | B09SP6HLLP | — | 2026-10-10 |
| NAKED EAAs Amino Acids Powder (500 g, Unflavored, Vegan) | NAKED | 10000 g EAA / 1 scoop (10 g) | 50 | $39.99 | $0.64 | None stated | B0B9YJZ1WV | — | 2026-10-10 |
| Nutricost EAA Powder, Fruit Punch (30 Servings) | Nutricost | 8000 g EAA / 1 scoop (8 g) | 30 | $19.95 | $0.66 | None stated | B09SPDV3JK | — | 2026-10-10 |
| Nutricost EAA Capsules 1200 mg (240 ct) | Nutricost | 1200 g EAA / 2 capsules (1,200 mg) | 120 | $18.95 | $1.06 | None stated | B0C5KBZHYR | budget-capsule | 2026-10-10 |
| Kion Aminos Essential Amino Acids Capsules (210 ct) | Kion | 5000 g EAA / 7 capsules (5 g) | 30 | $54.95 | $2.93 | None stated | B09CFZLY8G | — | 2026-10-10 |

---

## Fiber

**Clinical dose:** ~25 g/day for women, ~38 g/day for men (21g/30g after 51); psyllium supplement 5-7g/serving, ramp up ~5g/week with water
**Use cases:** general fiber intake and regularity
**Form verdict:** Psyllium is the go-to supplement for closing a fiber gap; ramp slowly with water to avoid gas/bloating; supplements should top up food fiber, not replace it
**Main page:** https://verifiedsupplementdata.com/fiber/best-overall/
**Guides:** https://verifiedsupplementdata.com/fiber/ · https://verifiedsupplementdata.com/fiber/best-overall/ · https://verifiedsupplementdata.com/fiber/dosage-guide/ · https://verifiedsupplementdata.com/fiber/forms-compared/ · https://verifiedsupplementdata.com/fiber/metamucil-vs-now-psyllium/ · https://verifiedsupplementdata.com/fiber/now-foods-vs-benefiber/ · https://verifiedsupplementdata.com/fiber/now-vs-konsyl-psyllium/ · https://verifiedsupplementdata.com/fiber/third-party-tested/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| NOW Organic Inulin Prebiotic Powder (8 oz) | NOW Foods | 3 g / 1 tsp (~3 g) | 75 | $9.90 | $0.13 | USDA Organic, Non-GMO | B000MGSI1K | — | 2026-10-10 |
| Benefiber Prebiotic Fiber Powder (wheat dextrin) | Benefiber | 3 g / 2 tsp (~3.5 g) | 62 | $13.48 | $0.22 | None listed | B01978FIZC | — | 2026-10-10 |
| Metamucil 4-in-1 Psyllium, Sugar-Free (72 servings) | Metamucil | 3.4 g / 1 rounded tsp (~5.8 g) | 72 | $17.97 | $0.25 | None listed | B000052Y5Q | — | 2026-10-10 |
| Konsyl Daily Psyllium Fiber Powder (19 oz) | Konsyl | 5 g / 1 tsp (6 g) | 90 | $25.99 | $0.29 | Single-ingredient psyllium | B0D1DB2D6V | quality | 2026-10-10 |
| NOW Psyllium Husk Powder, Organic (12 oz) | NOW Foods | 7 g / 1 tbsp (9 g) | 38 | $14.69 | $0.39 | Non-GMO Project Verified, USDA Organic | B002N0OFEM | best-value | 2026-10-10 |
| Citrucel Methylcellulose Fiber Powder | Citrucel | 2 g / 1 tbsp (2 g fiber) | 30 | $18.59 | $0.62 | FDA OTC monograph drug | B001F0R76O | — | 2026-10-10 |

---

## Fisetin

**Clinical dose:** no established clinical dose — see page
**Use cases:** antioxidant research interest (unproven)
**Form verdict:** no dose has been shown effective — the only trial testing a real clinical outcome (ROPE, ~1400mg/day pulsed) found no benefit vs placebo; retail's 100-500mg/day continuous dose has not been tested at all
**Main page:** https://verifiedsupplementdata.com/supplements/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Double Wood Fisetin 100mg | Double Wood | 100 mg fisetin / 1 capsule | 60 | $22.95 | $0.38 | None claimed (no third-party testing disclosed) | B082WLT5V2 | budget-lowest-dose | 2026-10-10 |
| Life Extension Bio-Fisetin | Life Extension | 44.5 mg proprietary blend / 1 capsule | 30 | $11.25 | $0.38 | FF-20-style hybrid-hydrogel technology (fenugreek galactomannan + fisetin micelles) — the same underlying delivery technology validated in the one human fisetin PK trial | B08M99BR1N | validated-tech-tiny-actual-dose | 2026-10-10 |
| Toniiq Ultra High Purity Fisetin 500mg | Toniiq | 500 mg fisetin / 1 capsule | 60 | $44.41 | $0.74 | Third-party tested (brand claim); 98%+ purity claimed | B0C2QLNTPS | highest-dose-plain | 2026-10-10 |
| Doctor's Best Fisetin featuring Novusetin 100mg | Doctor's Best | 100 mg fisetin / 1 capsule | 30 | $22.99 | $0.77 | Novusetin branded raw material (patented, traceable supply chain); no independent third-party testing disclosed | B0081NXW1C | named-raw-material | 2026-10-10 |
| ProHealth Pure Fisetin 250mg | ProHealth | 250 mg fisetin / 1 capsule | 60 | $55.45 | $0.93 | None claimed (no third-party testing disclosed) | B0F22K1LV2 | pulsed-protocol-closest-match | 2026-10-10 |

---

## Flaxseed Oil

**Clinical dose:** 1 tbsp liquid oil (~7.6g ALA) trivially clears the adequate intake (1600mg/day men, 1100mg/day women); trial-tested range for biomarker effects is 2.4-8g ALA/day
**Use cases:** omega-3 ALA intake — does not raise DHA
**Form verdict:** Raising the ALA dose does not proportionally raise EPA and essentially never moves DHA at any dose — the conversion pathway is capacity-limited, not dose-limited; only 2 of 6 products disclose ALA mg per serving
**Main page:** https://verifiedsupplementdata.com/omega-3/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| NatureWise Flaxseed Oil 1200mg, CCOF Organic, 240 Softgels | NatureWise | 1200 mg flaxseed oil / 1 softgel | 240 | $18.99 | $0.08 | CCOF Certified Organic, Non-GMO | B00GBQ3K54 | disclosed-ala-softgel | 2026-10-10 |
| Nature Made Flaxseed Oil 1000mg, Fish-Free Omega-3, 180 Softgels | Nature Made | 1000 mg flaxseed oil / 1 softgel | 180 | $15.49 | $0.09 | None stated | B0029O0C1M | — | 2026-10-10 |
| Nutricost Flaxseed Oil 1200mg, 120 Softgels | Nutricost | 1200 mg flaxseed oil / 1 softgel | 120 | $11.95 | $0.10 | GMO-free, gluten-free | B0DZF2JHWJ | — | 2026-10-10 |
| NOW Foods Flax Oil 1000mg, Cold Pressed, 120 Veg Softgels | NOW Foods | 1000 mg flaxseed oil / 1 softgel | 120 | $16.55 | $0.14 | Hexane-free extraction | B078TH6LYM | — | 2026-10-10 |
| Barlean's Omega 3-6-9 Flaxseed Oil Softgels, 250 Ct | Barlean's | 1650 mg ALA claimed (total package figure, per-serving softgel count ambiguous) / 1 softgel (serving size ambiguous — see label) | 250 | $38.99 | $0.16 | None stated | B0009ET4K4 | — | 2026-10-10 |
| Barlean's Organic Flaxseed Oil, 8 fl oz (Liquid) | Barlean's | 14000 mg flaxseed oil / 1 tbsp (~15mL) | 16 | $14.49 | $0.91 | Organic (cold-pressed) | B00N55ASK4 | cheapest-per-gram-ala-disclosed | 2026-10-10 |

---

## Gaba

**Clinical dose:** ~100 mg/day is the trial-relevant floor (mostly branded PharmaGABA); 300 mg/day is the best-tested sleep dose (fermented rice germ, 4 weeks); retail capsules commonly sell 500-750 mg, untested at that level for these outcomes
**Use cases:** relaxation, sleep support
**Form verdict:** PharmaGABA at ~100mg matches the dose and form behind most positive trials; a 500-750mg synthetic capsule is not a proven stronger version — no trial tested that dose for relaxation or sleep
**Main page:** https://verifiedsupplementdata.com/gaba/
**Guides:** https://verifiedsupplementdata.com/gaba/ · https://verifiedsupplementdata.com/gaba/for-sleep/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nutricost GABA 750 mg | Nutricost | 750 mg GABA / 1 capsule | 240 | $19.95 | $0.08 | Third-party tested (brand claim) | B09CXT8S6S | cheapest-per-day | 2026-10-10 |
| NOW GABA 500 mg | NOW Foods | 500 mg GABA / 1 capsule | 100 | $9.13 | $0.09 | cGMP | B0078W47PM | cheapest-per-cap | 2026-10-10 |
| NOW Foods GABA 750 mg | NOW Foods | 750 mg GABA / 1 capsule | 200 | $20.43 | $0.10 | cGMP | B0768K5V8J | bulk-value | 2026-10-10 |
| Source Naturals Serene Science GABA 750 mg | Source Naturals | 750 mg GABA / 1 capsule | 180 | $21.85 | $0.12 | cGMP | B000GFHPAM | — | 2026-10-10 |
| Thorne PharmaGABA-100 | Thorne | 100 mg GABA / 1 capsule | 60 | $34.00 | $0.57 | NSF Certified for Sport | B001904F74 | trial-matched | 2026-10-10 |
| Jarrow Formulas GABA Soothe | Jarrow Formulas | 100 mg GABA (+ L-theanine + ashwagandha, combo) / 1 capsule | 30 | $16.99 | $0.58 | cGMP | B003L8RW22 | — | 2026-10-10 |

---

## Garlic

**Clinical dose:** aged garlic extract ~600-1200 mg/day (1.2 g/day in one trial); enteric/stabilized allicin dosed by standardized allicin potential (mcg), not root mg
**Use cases:** general wellness; culinary and traditional use
**Form verdict:** Aged garlic extract is the form with the most human research; plain powders and garlic-oil 'equivalent mg' products don't reliably deliver allicin — only 6 of 12 products tracked use a delivering form
**Main page:** https://verifiedsupplementdata.com/garlic/
**Guides:** https://verifiedsupplementdata.com/garlic/ · https://verifiedsupplementdata.com/garlic/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nature's Bounty Odorless Garlic 1000 mg Equivalent (100 Softgels) | Nature's Bounty | 1000 mg equiv / 1 softgel | 100 | $4.47 | $0.04 | None | B004JO7BTG | — | 2026-10-10 |
| Puritan's Pride Odorless Garlic 1000 mg Equivalent (250 Softgels) | Puritan's Pride | 1000 mg equiv / 1 softgel | 250 | $10.00 | $0.04 | None | B004R63N8O | — | 2026-10-10 |
| Nature's Way Garlic Bulb 580 mg (100 Capsules) | Nature's Way | 580 mg / 1 capsule | 100 | $9.19 | $0.09 | None | B00125VPZ6 | — | 2026-10-10 |
| 21st Century Garlic Odorless (60 Tablets) | 21st Century | 500 mg / 1 tablet | 60 | $7.99 | $0.13 | None | B0007PQBAG | — | 2026-10-10 |
| NOW Garlic Oil 1500 mg Equivalent (250 Softgels) | NOW Foods | 1500 mg equiv / 3 softgels | 83 | $10.71 | $0.13 | None | B000MGR1JK | — | 2026-10-10 |
| NOW Garlic 5000 Enteric-Coated (90 Tablets) | NOW Foods | 500 mg bulb / 1 tablet | 90 | $15.91 | $0.18 | None | B006W990J0 | — | 2026-10-10 |
| Kyolic Aged Garlic Extract Formula 100 (200 Capsules) | Kyolic | 600 mg AGE / 2 capsules | 100 | $21.07 | $0.21 | None | B000POSA2Q | — | 2026-10-10 |
| Nature's Way Garlinase 5000 Enteric-Coated (100 Tablets) | Nature's Way | 320 mg extract / 1 tablet | 100 | $25.68 | $0.26 | None | B0013OQC4U | — | 2026-10-10 |
| Nature's Truth Odorless Garlic 2400 mg Equivalent (120 Softgels) | Nature's Truth | 2400 mg equiv / 2 softgels | 30 | $8.64 | $0.28 | None | B00XHKA730 | — | 2026-10-10 |
| Kyolic Aged Garlic Extract Formula 109 Blood Pressure Health (160 Capsules) | Kyolic | 400 mg AGE / 2 capsules | 80 | $36.49 | $0.46 | None | B005FC6VUQ | — | 2026-10-10 |
| Kyolic Aged Garlic Extract Formula 200 Reserve (60 Capsules) | Kyolic | 1200 mg AGE / 2 capsules | 30 | $16.05 | $0.54 | None | B005P0SYKI | — | 2026-10-10 |
| Allimax Pro 450 mg Stabilized Allicin (100 Capsules) | Allimax | 450 mg allicin / 1 capsule | 100 | $73.60 | $0.73 | None | B005S7G75C | — | 2026-10-10 |

---

## Gear


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| NICETOWN Blackout Curtains, 2 panels, 52 x 84 in | NICETOWN | 1 unit / 1 item | 1 | $14.57 | $14.57 | n/a (not a supplement) | B015SJ8AM2 | — | 2026-10-10 |
| Etekcity 0.1 g Digital Food Scale | Etekcity | 1 unit / 1 item | 1 | $16.99 | $16.99 | n/a (not a supplement) | B08BPB9T1N | — | 2026-10-10 |
| EltaMD UV Clear Broad-Spectrum SPF 46 (1.7 oz) | EltaMD | 1 unit / 1 item | 1 | $45.00 | $45.00 | n/a (not a supplement) | B002MSN3QQ | — | 2026-10-10 |

---

## Ginkgo

**Clinical dose:** 120-240 mg/day standardized 24%/6% extract
**Use cases:** memory and circulation support
**Form verdict:** must be a standardized 24%/6% extract (ideally EGb 761), not whole-leaf — even at the studied 240mg/day dose, the large long-term trials (GEM, GuidAge) found no benefit, so dose was not why they failed
**Main page:** https://verifiedsupplementdata.com/ginkgo/best-overall/
**Guides:** https://verifiedsupplementdata.com/ginkgo/ · https://verifiedsupplementdata.com/ginkgo/best-overall/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nutricost Ginkgo Biloba 120 mg (240 Capsules) | Nutricost | 120 mg ginkgo extract / 1 capsule (120 mg) | 240 | $14.95 | $0.06 | None (GMP facility) | B01BCULYEC | — | 2026-10-10 |
| Nature's Bounty Ginkgo Biloba 120 mg Standardized Extract (100 Capsules) | Nature's Bounty | 120 mg ginkgo extract / 1 capsule (120 mg) | 100 | $8.49 | $0.08 | None | B002Y27JYM | — | 2026-10-10 |
| Doctor's Best Extra Strength Ginkgo Biloba 120 mg (120 Veggie Caps) | Doctor's Best | 120 mg ginkgo extract / 1 capsule (120 mg) | 120 | $12.99 | $0.11 | None | B000NRXNT0 | best-value | 2026-10-10 |
| Life Extension Ginkgo Biloba Certified Extract 120 mg (365 Veg Caps) | Life Extension | 120 mg ginkgo extract / 1 capsule (120 mg) | 365 | $39.65 | $0.11 | None (per-lot COA) | B000KEO85E | — | 2026-10-10 |
| Horbaach Ginkgo Biloba 120 mg Standardized Extract (240 Tablets) | Horbaach | 120 mg ginkgo extract / 1 tablet (120 mg) | 120 | $13.99 | $0.12 | None | B0BXTC84XT | — | 2026-10-10 |
| NOW Ginkgo Biloba 120 mg, Double Strength (100 Veg Capsules) | NOW Foods | 120 mg ginkgo extract / 1 capsule (120 mg) | 100 | $12.70 | $0.13 | None (Non-GMO, Kosher) | B0013OVZCO | — | 2026-10-10 |
| Carlyle Ginkgo Biloba 6,000 mg Equivalent, 50:1 Whole-Leaf (200 Capsules) | Carlyle | 120 mg ginkgo (50:1) / 2 capsules (120 mg 50:1) | 100 | $14.98 | $0.15 | None | B09L8JR6LT | — | 2026-10-10 |
| Solaray Guaranteed Potency Ginkgo Biloba Leaf Extract 60 mg (120 Capsules) | Solaray | 60 mg ginkgo extract / 1 capsule (60 mg) | 120 | $39.00 | $0.32 | None (in-house lab verified) | B0011FWJNY | — | 2026-10-10 |
| Nature's Way Ginkgold Advanced Ginkgo Extract (150 Tablets) | Nature's Way | 120 mg ginkgo extract / 2 tablets (120 mg) | 75 | $32.45 | $0.43 | None | B003DI94OO | — | 2026-10-10 |
| Nature's Way Ginkgo Premium Extract with Gotu Kola (60 Capsules) | Nature's Way | 120 mg ginkgo extract / 2 capsules (120 mg) | 30 | $13.37 | $0.45 | Non-GMO Verified | B0009EXLEY | — | 2026-10-10 |
| Nature's Way Ginkgold Max Advanced Ginkgo Extract (60 Vegan Tablets) | Nature's Way | 120 mg ginkgo extract / 1 tablet (120 mg) | 60 | $32.90 | $0.55 | None | B00029F4SM | — | 2026-10-10 |

---

## Ginseng

**Clinical dose:** by format: standardized extract 200-400 mg/day at 4% ginsenosides (G115 benchmark, ~8-16mg ginsenosides); red/whole root 0.5-3 g/day
**Use cases:** energy/fatigue, general vitality
**Form verdict:** Root mg is not ginsenoside content — independent testing found ginsenoside content varies 15-36 fold versus label; prefer a disclosed ginsenoside % over a big root-weight number
**Main page:** https://verifiedsupplementdata.com/ginseng/best-overall/
**Guides:** https://verifiedsupplementdata.com/ginseng/ · https://verifiedsupplementdata.com/ginseng/best-overall/ · https://verifiedsupplementdata.com/ginseng/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| NOW American Ginseng, 500 mg (100 Veg Capsules) | NOW Foods | 500 mg ginseng root / 1 capsule (500 mg) | 100 | $11.60 | $0.11 | None (NPA GMP brand) | B000MGOYR2 | — | 2026-10-10 |
| Nature's Bounty Ginseng Complex with B-12 (75 Capsules) | Nature's Bounty | null mg ginseng blend / 2 capsules | 37 | $8.40 | $0.23 | None | B00392HD7Y | — | 2026-10-10 |
| Hsu's Wisconsin American Ginseng, 500 mg (100 Capsules) | Hsu's Ginseng | 500 mg ginseng root / 1 capsule (500 mg) | 100 | $24.99 | $0.25 | None | B000153QYG | — | 2026-10-10 |
| Solgar Korean Ginseng Root Extract SFP (60 Capsules) | Solgar | null mg ginseng root extract / 1 capsule | 60 | $24.99 | $0.42 | None (Kosher/Non-GMO) | B000WMWYAK | — | 2026-10-10 |
| Nature's Way Asian Ginseng, 1,120 mg (100 Capsules) | Nature's Way | 1120 mg ginseng root / 2 capsules (1,120 mg) | 50 | $22.18 | $0.44 | None | B000QUMRYQ | best-value | 2026-10-10 |
| Gaia Herbs Eleuthero Root, labeled "Siberian Ginseng" (60 Liquid Phyto-Caps) | Gaia Herbs | null mg eleuthero root / 1 capsule | 60 | $30.59 | $0.51 | None | B0036THNUC | — | 2026-10-10 |
| Prince of Peace Red Panax Ginseng Extractum, Ultra Strength (30 Vials) | Prince of Peace | null mg red ginseng / 1 vial (10 mL) | 30 | $17.45 | $0.59 | None | B000KWMNA8 | — | 2026-10-10 |
| Auragin Authentic Korean Red Ginseng, 6-Year Roots (60 Tablets) | Auragin | null mg red ginseng / 1 tablet | 60 | $39.95 | $0.67 | None | B00JVA8RO6 | — | 2026-10-10 |
| KGC Cheong Kwan Jang Korean Red Ginseng Extract EveryTime, 3,000 mg (10 Pouches) | KGC Cheong Kwan Jang | 3000 mg red ginseng extract / 1 pouch (3,000 mg) | 10 | $45.49 | $4.55 | None | B0DJ3N1N7L | — | 2026-10-10 |

---

## Glucomannan

**Clinical dose:** 3g/day, taken as three 1g doses before meals with water; up to ~4.5 g/day in other studies
**Use cases:** fiber intake, fullness, regularity
**Form verdict:** Must always be taken with a full glass (≥8 fl oz) of water, never dry — underhydrated tablets/capsules have caused esophageal obstruction in case reports.
**Main page:** https://verifiedsupplementdata.com/psyllium/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| NOW Foods Glucomannan 575mg (180 Veg Capsules) | NOW Foods | 575 mg / 1 capsule (575mg) | 180 | $16.52 | $0.09 | None stated | B000MGWI02 | best-value-capsule | 2026-10-10 |
| Nutricost Glucomannan 1,800mg per Serving (180 Capsules) | Nutricost | 600 mg / 1 capsule (600mg) | 180 | $16.95 | $0.09 | None stated | B01HQZB4K6 | clean-dose-capsule | 2026-10-10 |
| Nutricost Glucomannan Powder (500g) | Nutricost | 2 g / 1 scoop (2g) | 250 | $24.99 | $0.10 | None stated | B01EGTY358 | best-value | 2026-10-10 |
| Nature's Way Glucomannan 665mg, Konjac Root (100 Capsules) | Nature's Way | 665 mg / 1 capsule (665mg) | 100 | $12.50 | $0.13 | None stated | B00020HQYG | — | 2026-10-10 |
| BulkSupplements.com Glucomannan Powder from Konjac Root (500g) | BulkSupplements.com | 2 g / 1 scoop (2g) | 250 | $42.97 | $0.17 | None stated | B075GVFHDT | premium-alt | 2026-10-10 |

---

## Glucosamine

**Clinical dose:** 1,500 mg/day glucosamine sulfate (as one dose or 500 mg three times a day)
**Use cases:** joint comfort (efficacy contested)
**Form verdict:** must be sulfate, not hydrochloride — the positive trials used sulfate while HCl trials (including GAIT) were largely negative; evidence for efficacy is mixed and contested
**Main page:** https://verifiedsupplementdata.com/collagen/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Doctor's Best Glucosamine Sulfate 750mg | Doctor's Best | 1500 mg / 2 capsules | 90 | $14.99 | $0.17 | None | B000I4C0J2 | best-value | 2026-10-10 |
| NOW Supplements Glucosamine Sulfate 750mg | NOW Foods | 1500 mg / 2 capsules | 120 | $24.99 | $0.20 | None | B0013OUP20 | — | 2026-10-10 |

---

## Glutathione

**Clinical dose:** 250-1000 mg/day for body stores (Richie 2015, 6mo)
**Use cases:** antioxidant support
**Form verdict:** no single best form verified; Setria's 200mg-1g exercise doses (always paired with L-citrulline) should not be borrowed for other purposes
**Main page:** https://verifiedsupplementdata.com/nac/
**Guides:** https://verifiedsupplementdata.com/glutathione/best-overall/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Life Extension Glutathione, Cysteine & C | Life Extension | 50 mg reduced glutathione / 1 capsule | 100 | $14.85 | $0.15 | Not independently verified | B00BRAZIRM | — | 2026-10-10 |
| Nutricost Glutathione 500 mg | Nutricost | 500 mg reduced glutathione / 1 capsule | 240 | $39.95 | $0.16 | Not independently verified | B088NDXC8N | best-cost-per-mg | 2026-10-10 |
| NOW Glutathione 500 mg | NOW Foods | 500 mg reduced glutathione / 1 capsule | 60 | $23.10 | $0.38 | Not independently verified | B0019LWV92 | — | 2026-10-10 |
| Jarrow Formulas Glutathione Reduced 500 mg | Jarrow Formulas | 500 mg reduced glutathione / 1 capsule | 120 | $57.94 | $0.49 | Not independently verified | B008X2VXBW | trial-dose-match | 2026-10-10 |
| Jarrow Formulas S-Acetyl L-Glutathione 100 mg | Jarrow Formulas | 100 mg S-acetyl-glutathione / 1 tablet | 60 | $30.99 | $0.51 | Not independently verified | B00OGXJON6 | — | 2026-10-10 |
| Codeage Liposomal Glutathione 1000 mg | Codeage | 1000 mg reduced glutathione / 2 capsules | 30 | $48.54 | $1.61 | Not independently verified | B09ZJ9N4MV | — | 2026-10-10 |

---

## Glycine

**Clinical dose:** 3 g about 30-60 minutes before bed
**Use cases:** sleep support
**Form verdict:** powder is naturally sweet, dissolves easily, and is far cheaper per gram than capsules
**Main page:** https://verifiedsupplementdata.com/glycine/
**Guides:** https://verifiedsupplementdata.com/glycine/ · https://verifiedsupplementdata.com/glycine/does-it-work/ · https://verifiedsupplementdata.com/glycine/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| BulkSupplements Glycine Powder (1 kg) | BulkSupplements | 3000 mg glycine / 1 scoop (3 g) | 333 | $32.97 | $0.10 | Third-party lab tested | B00EOXU0MM | best-value | 2026-10-10 |
| NOW Foods Glycine Pure Powder (1 lb) | NOW Foods | 3000 mg glycine / 3/4 tsp (3 g) | 151 | $18.37 | $0.12 | GMP (NPA) | B0013OVZJW | best-powder | 2026-10-10 |
| Nutricost Glycine Powder (1 lb) | Nutricost | 3000 mg glycine / 1 scoop (3 g) | 151 | $21.95 | $0.15 | Independent lab tested | B09F83CPX8 | — | 2026-10-10 |
| NOW Foods Glycine 1000 mg Capsules (100) | NOW Foods | 1000 mg glycine / 1 capsule | 100 | $11.62 | $0.35 | GMP (NPA) | B002J0RHTQ | best-capsule | 2026-10-10 |
| Double Wood Glycine 1000 mg (300 capsules) | Double Wood | 1000 mg glycine / 2 capsules | 150 | $19.95 | $0.40 | Third-party tested | B08FCRJW9V | — | 2026-10-10 |
| NutraBio Glycine Powder (150 g) | NutraBio | 1000 mg glycine / 1 scoop (1 g) | 150 | $19.99 | $0.40 | Fully-disclosed label / COA | B0BGT9SF2G | — | 2026-10-10 |
| Thorne Glycine (250 capsules) | Thorne | 1000 mg glycine / 2 capsules | 125 | $31.00 | $0.74 | Third-party certified | B000VYRROC | best-tested | 2026-10-10 |
| Pure Encapsulations Glycine (180 capsules) | Pure Encapsulations | 1500 mg glycine / 3 capsules | 60 | $35.00 | $1.17 | NSF-audited GMP, hypoallergenic | B0016BX8O2 | — | 2026-10-10 |

---

## Grape Seed Extract

**Clinical dose:** 150-300 mg/day typical (trials range 100-800 mg/day)
**Use cases:** general antioxidant support
**Form verdict:** disclosed standardization (OPC/proanthocyanidin %) matters more than the milligram number on the label
**Main page:** https://verifiedsupplementdata.com/grape-seed-extract/best-overall/
**Guides:** https://verifiedsupplementdata.com/grape-seed-extract/ · https://verifiedsupplementdata.com/grape-seed-extract/best-overall/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| NOW Foods Grape Seed 100mg (90% Standardized, with Vitamin C) | NOW Foods | 100 mg GSE extract / 1 veg capsule | 200 | $12.23 | $0.06 | cGMP; widely recognized brand | B0013OXE46 | closest-to-trial-dose | 2026-10-09 |
| Nutricost Grape Seed Extract 400mg (95% Proanthocyanidins, 70:1 Extract) | Nutricost | 400 mg GSE extract / 1 capsule | 240 | $19.95 | $0.08 | None claimed | B09NFB158Y | best-overall | 2026-10-10 |
| Bronson Grape Seed Extract 400mg (95% OPCs) | Bronson | 400 mg GSE extract / 1 capsule | 90 | $9.99 | $0.11 | None claimed | B0C6R3HW26 | cheapest-standardized | 2026-10-10 |
| Puritan's Pride Grapeseed Extract 200mg (2 Capsules/Day) | Puritan's Pride | 400 mg GSE extract / 2 capsules | 60 | $8.90 | $0.15 | None claimed | B004R65MFG | — | 2026-10-10 |
| Doctor's Recipes Grape Seed Extract 500mg (95% OPCs) | Doctor's Recipes | 500 mg GSE extract / 1 capsule | 60 | $15.99 | $0.27 | None claimed | B0FM7SS54V | — | 2026-10-10 |
| Life Extension Grapeseed Extract with Vitamin C, Resveratrol & Calcium | Life Extension | 100 mg (combo, isolated GSE mg not disclosed) / 1 capsule | 60 | $23.00 | $0.38 | Combo product: grape seed extract + vitamin C + resveratrol + calcium — NOT a pure GSE product | B07F779YVZ | — | 2026-10-10 |

---

## Greens

**Guides:** https://verifiedsupplementdata.com/greens/ag1-alternatives/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Amazing Grass Super Greens, The Original (30 servings, 8.5 oz) | Amazing Grass | 8 g / 1 scoop (8 g) | 30 | $22.47 | $0.75 | USDA Organic (CCOF) | B00112ILZM | budget | 2026-10-10 |
| Orgain Organic Superfoods, Original (0.62 lb, about 20 servings) | Orgain | 14 g / 1 scoop (14 g) | 20 | $16.35 | $0.82 | USDA Organic | B019TUCOF0 | — | 2026-10-10 |
| Garden of Life Raw Organic Perfect Food Juiced Greens, Original (30 servings) | Garden of Life | 6.9 g / 1 level scoop (6.9 g) | 30 | $34.29 | $1.14 | USDA Organic; NSF Certified Gluten Free (brand-stated; not a registry we checked) | B002HI1LSI | organic | 2026-10-10 |
| Bloom Greens & Superfoods, Original (30 servings) | Bloom Nutrition | 5 g / 1 scoop (about 5 g) | 30 | $34.99 | $1.17 | None stated | B08PQ4SH4G | alternative | 2026-10-10 |
| Transparent Labs Greens, Original (30 servings) | Transparent Labs | 16.17 g / 1 scoop (16.17 g) | 30 | $39.99 | $1.33 | Informed Choice (product line Prebiotic Greens) | B0CVQTC883 | — | 2026-10-10 |
| Sports Research Organic Greens, Original (7.05 oz, 20 servings) | Sports Research | 10 g / 1 scoop (10 g) | 20 | $29.95 | $1.50 | Informed Sport (product line Organic Greens); USDA Organic | B0DL74QXF8 | — | 2026-10-10 |
| BPN Strong Greens, Lemon (30 servings, 228 g) | Bare Performance Nutrition | 7.6 g / 1 scoop (7.6 g) | 30 | $44.99 | $1.50 | NSF Certified for Sport (listing 1643782, Lemon, 228 g); NSF/ANSI 173; Informed Sport (product line) | B078YXTX7M | — | 2026-10-10 |
| Huel Daily Greens, Original (30 servings) | Huel | 8.5 g / 1 scoop (8.5 g) | 30 | $45.95 | $1.53 | Third-party tested (brand-stated; not found in a public registry) | B0DNTZ1Y35 | — | 2026-10-10 |
| Vibrant Health Green Vibrance (30 servings) | Vibrant Health | 11.2 g / 1 scoop (11.2 g) | 30 | $49.60 | $1.65 | None stated | B005P0MT5O | — | 2026-10-10 |
| Gnarly Performance Greens, Blueberry Acai (330 g bag, about 30 servings) | Gnarly Nutrition | 10 g / 1 level tbsp (10 g) | 30 | $54.55 | $1.82 | NSF Certified for Sport (listing 1484853, Blueberry Acai, 330 g); NSF/ANSI 173 | B07HQMTB1R | — | 2026-10-10 |
| Designs for Sport Pro Greens + Reds (309 g, about 30 servings) | Designs for Sport | 10 g / 1 scoop (10 g) | 30 | $69.99 | $2.33 | NSF Certified for Sport (listing 1786415, 309 g); NSF/ANSI 173 | B0GQ59QNFC | — | 2026-10-10 |
| Thorne Daily Greens Plus, Mint (30 servings) | Thorne | 6.8 g / 1 scoop (6.8 g) | 30 | $72.00 | $2.40 | NSF/ANSI 173 | B0B7PXPY5Q | — | 2026-10-05 |
| AG1 Greens Powder (30 servings, pouch with shaker) | AG1 | 12 g / 1 scoop (12 g) | 30 | $99.99 | $3.33 | NSF Certified for Sport (listings 1749844, 1680503 and 1700817 include the 360 g pouch); NSF/ANSI 173 | B084GZNKZQ | ag1 | 2026-10-10 |
| IM8 Daily Ultimate Essentials, Acai and Mixed Berries (30 sachets) | IM8 | 13.6 g / 1 sachet (13.6 g) | 30 | $115.00 | $3.83 | NSF Certified for Sport (listing 1811431, Berry, 408 g) | B0GVM2WND7 | — | 2026-10-10 |

---

## Hmb

**Clinical dose:** 3 g/day, typically split into three 1g doses
**Use cases:** muscle preservation, exercise recovery
**Form verdict:** Ca-HMB is the cheaper, equally mechanistically-supported default; HMB-FA absorbs faster/higher but no independent trial shows that changes real-world outcomes
**Main page:** https://verifiedsupplementdata.com/hmb/best-overall/
**Guides:** https://verifiedsupplementdata.com/hmb/ · https://verifiedsupplementdata.com/hmb/best-overall/ · https://verifiedsupplementdata.com/hmb/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Primaforce HMB Powder, Unflavored (200 g) | Primaforce | 1000 g HMB / 1 scoop (1 g) | 200 | $18.50 | $0.28 | None stated | B0CNKV2T7T | best-value | 2026-10-10 |
| BulkSupplements.com HMB Powder, Unflavored (250 g) | BulkSupplements.com | 1000 g HMB / 1 scoop (1 g) | 250 | $22.97 | $0.28 | Third-party tested, cGMP | B017L2M7RI | reputable-brand-powder | 2026-10-10 |
| BulkSupplements.com HMB Capsules (360 ct, 3,000 mg serving) | BulkSupplements.com | 3000 mg HMB / 6 capsules (3,000 mg) | 60 | $23.96 | $0.40 | Third-party tested, cGMP | B0CQDBPXJF | budget-capsule | 2026-10-10 |
| Nutricost HMB 1,000 mg (240 Capsules) | Nutricost | 1000 mg HMB / 2 capsules (1,000 mg) | 120 | $19.95 | $0.50 | 3rd-party tested (ISO lab) | B07KX2GJHV | — | 2026-10-10 |
| Optimum Nutrition HMB 1000 Caps (90 Capsules, 3,000 mg serving) | Optimum Nutrition | 3000 mg HMB / 3 capsules (3,000 mg) | 30 | $39.99 | $1.33 | cGMP; reputable manufacturer | B000GIPJ16 | — | 2026-10-10 |
| MuscleTech Clear Muscle (BetaTOR HMB-FA, 42 Liquid Softgels) | MuscleTech | 1000 mg HMB / 1 liquid softgel (1,000 mg) | 42 | $32.75 | $2.33 | cGMP; reputable manufacturer | B07YNGFFDT | — | 2026-10-10 |

---

## Hyaluronic Acid

**Clinical dose:** 120 mg/day for skin (Oe 2017, Hsu 2021, 12wk); joint doses lower/inconsistent — 200mg/day plain HA (Tashiro 2012) or 80mg/day of a different branded ingredient (Nelson 2015)
**Use cases:** skin hydration; joint comfort
**Form verdict:** no dose-ranging trial shows more than 120mg does more for skin; joint dose is not interchangeable with the skin dose
**Main page:** https://verifiedsupplementdata.com/hyaluronic-acid/
**Guides:** https://verifiedsupplementdata.com/hyaluronic-acid/ · https://verifiedsupplementdata.com/hyaluronic-acid/dosage-guide/ · https://verifiedsupplementdata.com/hyaluronic-acid/for-skin-hydration/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nutricost Hyaluronic Acid 100mg | Nutricost | 100 mg hyaluronic acid / 1 capsule | 120 | $13.95 | $0.12 | GMP-compliant facility | B07X7J7GVK | cheapest-per-mg | 2026-10-10 |
| NOW Foods Hyaluronic Acid 50mg with MSM | NOW Foods | 100 mg hyaluronic acid / 2 capsules | 60 | $19.49 | $0.32 | GMP facility | B000S97MOU | — | 2026-10-10 |
| Doctor's Best Hyaluronic Acid with Chondroitin Sulfate (BioCell Collagen) | Doctor's Best | 1000 mg BioCell Collagen blend / 2 capsules | 90 | $38.99 | $0.43 | None stated | B003C5F8FW | — | 2026-10-10 |
| Jarrow Formulas Hyaluronic Acid 120mg | Jarrow Formulas | 120 mg hyaluronic acid / 2 capsules | 30 | $14.99 | $0.50 | None stated | B0013OX996 | trial-dose-match-plain | 2026-10-10 |
| Natural Factors Hyabest Hyaluronic Acid 120mg | Natural Factors | 120 mg hyaluronic acid / 1 capsule | 60 | $34.97 | $0.58 | Hyabest branded ingredient (Kewpie Corporation-licensed raw material) | B0046XE8L4 | trial-matched-ingredient | 2026-10-10 |

---

## Inulin

**Clinical dose:** start ~2.5 g/day and ramp gradually over 1-2 weeks to a 5-10 g/day target
**Use cases:** prebiotic fiber, gut regularity
**Form verdict:** native long-chain inulin ferments slower/gentler; shorter-chain FOS ferments faster and is often gassier at an equivalent dose
**Main page:** https://verifiedsupplementdata.com/inulin/best-overall/
**Guides:** https://verifiedsupplementdata.com/inulin/ · https://verifiedsupplementdata.com/inulin/best-overall/ · https://verifiedsupplementdata.com/inulin/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| NOW Organic Inulin Powder (8 oz) | NOW Foods | 4 g / ~1 tsp (est., see note) | 57 | $9.90 | $0.18 | USDA Organic | B000MGSI1K | budget | 2026-10-10 |
| NOW Organic Inulin Powder (1 lb) | NOW Foods | 4 g / ~1 tsp (est., see note) | 113 | $21.44 | $0.19 | None listed | B07X4LMF6L | best-value | 2026-10-10 |
| Nutricost Prebiotic Fiber Unflavored (1 lb) | Nutricost | 7 g / 1 scoop (~7g, est., see note) | 65 | $19.95 | $0.31 | None listed | B0F22L62DC | — | 2026-10-10 |
| Nutricost Organic Inulin Powder (1 lb / 454 g) | Nutricost | 7 g / 1 scoop (~7g, label claim, see note) | 65 | $21.95 | $0.34 | USDA Organic | B08RRSZ8H6 | quality | 2026-10-10 |

---

## Iodine

**Clinical dose:** RDA 150 mcg/day (adults); upper limit 1100 mcg/day for all adults
**Use cases:** daily iodine intake and normal thyroid function
**Form verdict:** 150-250mcg/day population sweet spot; high-dose iodine products (12.5-50mg/day, 85-330x RDA) are not supported by any evidence in this pack
**Main page:** https://verifiedsupplementdata.com/supplements/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| NOW Supplements Kelp, 150mcg Natural Iodine | NOW Foods | 150 mcg / 1 tablet | 200 | $7.95 | $0.04 | None stated | B000OSQP3E | best-overall | 2026-10-10 |
| NOW Supplements Kelp, 325mcg Natural Iodine | NOW Foods | 325 mcg / 1 veg capsule | 250 | $11.79 | $0.05 | None stated | B0009A0LDM | — | 2026-10-10 |
| Nutricost Kelp Tablets, 325mcg Iodine | Nutricost | 325 mcg / 1 tablet | 240 | $11.95 | $0.05 | None stated | B0971TDFRC | best-value | 2026-10-10 |
| Life Extension Sea-Iodine, 1000mcg | Life Extension | 1000 mcg / 1 veg capsule | 150 | $16.49 | $0.11 | None stated | B07NC1S4RG | — | 2026-10-10 |
| Nutricost Potassium Iodide (KI), 65mg | Nutricost | 65000 mcg / 1 capsule | 90 | $12.95 | $0.14 | None stated | B0B2XB4V43 | — | 2026-10-10 |
| Optimox Iodoral 12.5mg | Optimox | 12500 mcg / 1 tablet | 90 | $38.89 | $0.43 | None stated | B005MKP9OK | — | 2026-10-10 |

---

## Iron Bisglycinate

**Clinical dose:** RDA 8 mg/day (men, post-menopause), 18 mg/day (menstruating women); retail bisglycinate ('gentle iron') products in this comparison run 25-36 mg elemental per capsule
**Use cases:** general dietary iron intake
**Form verdict:** ferrous bisglycinate ('gentle iron') is often better tolerated than ferrous sulfate; check with your doctor before taking iron regularly
**Main page:** https://verifiedsupplementdata.com/supplements/iron-bisglycinate/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nature's Bounty Gentle Iron 28 mg (90 capsules) | Nature's Bounty | 28 mg / 1 capsule | 90 | $4.99 | $0.06 | Laboratory tested | B0061GLELG | — | 2026-10-10 |
| Nutricost Iron Bisglycinate 25 mg (240 capsules) | Nutricost | 25 mg / 1 capsule | 240 | $15.95 | $0.06 | Third party tested | B0CVK55665 | — | 2026-10-10 |
| NOW Iron 18 mg (120 capsules) | NOW | 18 mg / 1 capsule | 120 | $8.99 | $0.08 | Made and quality tested in the USA | B000WQDD2O | — | 2026-10-10 |
| NOW Iron 36 mg (90 capsules) | NOW | 36 mg / 1 capsule | 90 | $9.57 | $0.11 | Made and quality tested in the USA | B00FYOU6AG | budget | 2026-10-10 |
| Solgar Gentle Iron 25 mg (90 capsules) | Solgar | 25 mg / 1 capsule | 90 | $9.65 | $0.11 | Gluten-free, kosher, halal and non-GMO seals | B00068X4IG | best-value | 2026-10-10 |
| Bluebonnet Albion Chelated Iron 18 mg (90 capsules) | Bluebonnet | 18 mg / 1 capsule | 90 | $13.20 | $0.15 | None | B0012LWF5O | — | 2026-10-10 |
| Bluebonnet Albion Extra-Strength Chelated Iron 27 mg (90 capsules) | Bluebonnet | 27 mg / 1 capsule | 90 | $14.80 | $0.16 | None | B000I4C4FW | — | 2026-10-10 |
| Pure Encapsulations Iron-C 15 mg (60 capsules) | Pure Encapsulations | 15 mg / 1 capsule | 60 | $14.00 | $0.24 | Certified gluten-free (GFCO) | B0017HQDVK | — | 2026-10-10 |
| Seeking Health Iron with Cofactors 29 mg (90 capsules) | Seeking Health | 29 mg / 1 capsule | 90 | $22.00 | $0.24 | Third-party independently tested | B00OQNMC1M | — | 2026-10-10 |
| Thorne Iron Bisglycinate 25 mg (60 capsules) | Thorne | 25 mg / 1 capsule | 60 | $16.00 | $0.27 | NSF Certified for Sport | B0797GZDZL | quality | 2026-10-10 |
| Sports Research Blood Balance Iron 36 mg (90 liquid capsules) | Sports Research | 36 mg / 1 capsule | 90 | $26.95 | $0.30 | Third Party Tested | B0FXJKHPL7 | — | 2026-10-10 |
| MegaFood Blood Builder 26 mg (90 tablets) | MegaFood | 26 mg / 1 tablet | 90 | $28.99 | $0.32 | Tested for 150+ pesticides and herbicides | B000F4ZRCC | — | 2026-10-10 |
| Momentous Iron+ 25 mg (60 capsules) | Momentous | 25 mg / 1 capsule | 60 | $19.99 | $0.34 | NSF Certified for Sport | B0FD4YMP6C | — | 2026-10-10 |
| Thorne Advanced Iron Complex 36 mg (60 capsules) | Thorne | 36 mg / 1 capsule | 60 | $26.00 | $0.43 | None | B0797PJQMT | — | 2026-10-10 |
| Garden of Life Vitamin Code Raw Iron 22 mg (30 capsules) | Garden of Life | 22 mg / 1 capsule | 30 | $13.29 | $0.45 | Independent, third party verified (gluten-free and non-GMO seals) | B00280M13O | — | 2026-10-10 |
| OLLY Delightful Iron 18 mg chewable (60 tablets) | OLLY | 18 mg / 2 tablets | 30 | $13.53 | $0.45 | NSF Certified | B0DXXV3KF1 | — | 2026-10-10 |

---

## Iron Gummies


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Vitamatic Iron 20 mg Gummies (60 gummies) | Vitamatic | 20 mg / 2 gummies | 30 | $9.99 | $0.34 | Lab Tested | B0982HN1NK | budget | 2026-10-10 |
| Nature Made Iron 18 mg Gummies (60 gummies) | Nature Made | 18 mg / 2 gummies | 30 | $10.24 | $0.34 | None | B08FNG91XP | brand | 2026-10-10 |
| Vitafusion Iron 8 mg Gummies (60 gummies) | Vitafusion | 8 mg / 2 gummies | 30 | $12.59 | $0.43 | None | B0D6VBVYH6 | — | 2026-10-10 |
| Lifeable Iron 20 mg Gummies (90 gummies) | Lifeable | 20 mg / 2 gummies | 45 | $19.99 | $0.44 | Third-party independent laboratory testing | B08NWFTFS5 | — | 2026-10-10 |

---

## Iron Other


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nature's Bounty Iron 65 mg (Ferrous Sulfate 325 mg, 100 tablets) | Nature's Bounty | 65 mg / 1 tablet | 100 | $4.54 | $0.05 | None | B006QQRY2O | — | 2026-10-10 |
| Feosol Original Iron 65 mg (120 tablets) | Feosol | 65 mg / 1 tablet | 120 | $11.98 | $0.10 | None | B0085JNY5Q | — | 2026-10-10 |
| Vitron-C Iron 65 mg with Vitamin C (60 tablets) | Vitron-C | 65 mg / 1 tablet | 60 | $11.67 | $0.20 | None | B00140Z5DW | — | 2026-10-10 |
| Klean Athlete Klean Iron 27 mg (90 tablets) | Klean Athlete | 27 mg / 1 tablet | 90 | $19.00 | $0.21 | NSF Certified for Sport | B0B6WRQVJ7 | — | 2026-10-10 |
| Slow Fe Slow Release Iron 45 mg (30 tablets) | Slow Fe | 45 mg / 1 tablet | 30 | $6.47 | $0.22 | None | B0BGMPFJKQ | — | 2026-10-10 |
| Pure Encapsulations Iron-C (60 capsules) | Pure Encapsulations | 15 mg / 1 capsule | 60 | $14.00 | $0.23 | None | B0017HQDVK | — | 2026-10-10 |
| Garden of Life Vitamin Code Raw Iron (30 capsules) | Garden of Life | 22 mg / 1 capsule | 30 | $13.29 | $0.44 | None | B00280M13O | — | 2026-10-10 |

---

## Iron Sulfate


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nature Made Iron 65 mg (180 tablets) | Nature Made | 65 mg / 1 tablet | 180 | $6.67 | $0.03 | USP Verified | B003PGJLRO | — | 2026-10-10 |
| Nature's Bounty Iron 65 mg (100 tablets) | Nature's Bounty | 65 mg / 1 tablet | 100 | $4.54 | $0.05 | Laboratory tested | B006QQRY2O | — | 2026-10-10 |
| Piping Rock Iron 65 mg (250 tablets) | Piping Rock | 65 mg / 1 tablet | 250 | $11.89 | $0.05 | Certified Lab Tested in the USA | B00F9EZRQ4 | — | 2026-10-10 |
| Piping Rock Slow Release Iron 45 mg (200 tablets) | Piping Rock | 45 mg / 1 tablet | 200 | $9.99 | $0.05 | Certified Lab Tested in the USA | B0BJ7JMBFQ | — | 2026-10-10 |
| Feosol Original Iron 65 mg (120 tablets) | Feosol | 65 mg / 1 tablet | 120 | $11.98 | $0.10 | None | B0085JNY5Q | — | 2026-10-10 |
| Vitron-C Iron 65 mg + Vitamin C (60 tablets) | Vitron-C | 65 mg / 1 tablet | 60 | $11.67 | $0.20 | None | B00140Z5DW | — | 2026-10-10 |
| Klean Athlete Klean Iron 27 mg (90 tablets) | Klean Athlete | 27 mg / 1 tablet | 90 | $19.00 | $0.21 | NSF Certified for Sport | B0B6WRQVJ7 | — | 2026-10-10 |
| Slow Fe Slow Release Iron 45 mg (60 tablets) | Slow Fe | 45 mg / 1 tablet | 60 | $16.99 | $0.28 | None | B00ZQUDWIG | — | 2026-10-10 |
| Feosol Complete Iron 28 mg (30 caplets) | Feosol | 28 mg / 1 caplet | 30 | $16.08 | $0.53 | None | B0085JNY74 | — | 2026-10-10 |

---

## Kirkland


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Kirkland Signature Extra Strength Vitamin D3 2000 IU (600 softgels, 5-pack) | Kirkland Signature | 2000 IU / 1 softgel | 3000 | $65.59 | $0.02 | USP Verified (brand-stated; not confirmed in the public registry) | B07816FB9X | vitamin-d | 2026-10-10 |
| Kirkland Signature Omega-3 Fish Oil Concentrate 1000 mg (3 x 400 softgels) | Kirkland Signature | 300 mg omega-3 / 1 softgel | 1200 | $56.25 | $0.05 | USP Verified (per Costco label) (brand-stated; not confirmed in the public registry) | B014N7SEOE | fish-oil | 2026-10-10 |
| Kirkland Signature Daily Multi Vitamins & Minerals (500 tablets, 3-pack) | Kirkland Signature | 1 tablet / 1 tablet | 1500 | $71.95 | $0.05 | USP Verified (brand-stated; not confirmed in the public registry) | B07F1ZLQMF | multi | 2026-10-10 |
| Kirkland Signature Calcium 500 mg with D3 Adult Gummies (120 gummies) | Kirkland Signature | 500 mg calcium / 2 gummies | 60 | $12.98 | $0.22 | USP Verified (brand-stated; not confirmed in the public registry) | B00F4MD808 | calcium | 2026-10-10 |
| Kirkland Signature CoQ10 300 mg (200 softgels) | Kirkland Signature | 300 mg / 1 softgel | 200 | $47.70 | $0.24 | USP Verified (brand-stated; not confirmed in the public registry) | B01EWBH2VM | coq10 | 2026-10-10 |
| Kirkland Signature Extra Strength Glucosamine 1500 mg / Chondroitin 1200 mg (220 tablets) | Kirkland Signature | 1500 mg glucosamine / 2 tablets | 110 | $29.20 | $0.27 | USP Verified (brand-stated; not confirmed in the public registry) | B00GYZWNY6 | joint | 2026-10-10 |

---

## Krill Oil

**Clinical dose:** shop by disclosed EPA+DHA mg, not krill oil mg; general adequate-intake range 250-500 mg EPA+DHA/day; retail servings typically deliver only 120-270 mg EPA+DHA; trials ranged 300mg-4g/day krill oil (~120-880mg EPA+DHA)
**Use cases:** general omega-3 support
**Form verdict:** krill oil is less omega-3-dense than fish oil (108-240 mg EPA+DHA/g vs 300-500+ mg/g) — a bigger 'mg krill oil' number on the front label does not mean more omega-3
**Main page:** https://verifiedsupplementdata.com/krill-oil/best-overall/
**Guides:** https://verifiedsupplementdata.com/krill-oil/ · https://verifiedsupplementdata.com/krill-oil/best-overall/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| NOW Foods Neptune Krill Oil, 500mg | NOW Foods | 500 mg krill oil / 1 softgel | 120 | $32.86 | $0.27 | None stated | B003O1Y4C2 | — | 2026-10-10 |
| BulkSupplements.com Krill Oil, 1000mg | BulkSupplements | 1000 mg krill oil / 2 softgels | 60 | $22.97 | $0.38 | None stated | B0B9HTQ84M | — | 2026-10-10 |
| Sports Research Antarctic Krill Oil, 1000mg (Superba2) | Sports Research | 1000 mg krill oil / 1 softgel | 60 | $30.95 | $0.52 | None stated | B00IP1E3O0 | highest-density | 2026-10-10 |
| Schiff MegaRed Krill Oil, High Concentration 750mg | Schiff MegaRed | 750 mg krill oil / 1 softgel | 80 | $43.80 | $0.55 | None stated | B017UW9HVS | — | 2026-10-10 |
| Kori Krill Oil Omega-3, 600mg | Kori | 1200 mg krill oil / 2 softgels | 30 | $17.99 | $0.60 | None stated | B096N5PKGL | cleanest-reference-dose | 2026-10-10 |

---

## L Arginine

**Clinical dose:** studied doses range widely: 4-24 g/day sustained daily for weeks, most commonly 6-9 g/day; a single acute 6g dose did not change blood pressure in one trial
**Use cases:** nitric oxide support
**Form verdict:** oral bioavailability is variable (51-87%, avg 68%); L-citrulline raises plasma arginine more consistently; do NOT take post-heart-attack or with unstable cardiac disease without medical guidance
**Main page:** https://verifiedsupplementdata.com/l-citrulline/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nutricost L-Arginine Powder (500 g) | Nutricost | 5000 mg L-arginine / 1 scoop (5 g) | 100 | $21.95 | $0.26 | Manufactured in a GMP facility | B00WISWRLW | best-value | 2026-10-10 |
| BulkSupplements.com L-Arginine HCl Powder (500 g) | BulkSupplements | 5000 mg L-arginine HCl / 1 scoop (5 g, HCl salt weight) | 100 | $22.97 | $0.28 | Manufactured in a GMP facility | B00NAKBOHU | — | 2026-10-10 |
| Nutricost L-Arginine 1,000 mg (300 Tablets) | Nutricost | 1000 mg L-arginine / 1 tablet | 300 | $25.95 | $0.52 | Manufactured in a GMP facility | B07W8YC89F | pick-tested | 2026-10-10 |
| NOW Foods L-Arginine 1,000 mg (120 Tablets) | NOW Foods | 1000 mg L-arginine / 1 tablet | 120 | $17.04 | $0.85 | Manufactured in a GMP facility | B0013OVX3U | — | 2026-10-10 |
| Pure Encapsulations L-Arginine 1,400 mg (90 Capsules) | Pure Encapsulations | 1400 mg L-arginine / 2 capsules (1,400 mg) | 45 | $29.00 | $2.76 | None (practitioner brand) | B003PR2VVG | pick-quality | 2026-10-10 |

---

## L Carnitine

**Clinical dose:** LCLT ~2 g/day (exercise); ALCAR 1.5-3 g/day; PLC ~2 g/day
**Use cases:** exercise recovery (LCLT), general energy metabolism (ALCAR, PLC)
**Form verdict:** no single universal carnitine dose — match the specific form (LCLT/ALCAR/PLC) to your goal first; a 500mg capsule is only about a quarter of a 2g dose, so servings-per-container matters as much as the milligram number
**Main page:** https://verifiedsupplementdata.com/supplements/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nutricost Acetyl L-Carnitine (ALCAR) 500 mg (180 Capsules) | Nutricost | 500 mg acetyl-L-carnitine / 1 capsule (500 mg) | 180 | $18.95 | $0.11 | None (NSF-registered facility) | B076TT43SR | best-value | 2026-10-10 |
| BulkSupplements L-Carnitine L-Tartrate Powder, 1000 mg per serving (250 g) | BulkSupplements | 1000 mg L-carnitine (as LCLT) / 1 g scoop | 250 | $26.97 | $0.11 | None (third-party tested) | B01476IJK0 | — | 2026-10-10 |
| NOW Acetyl-L Carnitine 500 mg (200 Veg Capsules) | NOW Foods | 500 mg acetyl-L-carnitine / 1 capsule (500 mg) | 200 | $27.75 | $0.14 | None (cGMP) | B000QSLINE | — | 2026-10-10 |
| Horbaach L-Carnitine 500 mg, as L-Carnitine L-Tartrate (60 Capsules) | Horbaach | 500 mg L-carnitine (as LCLT) / 1 capsule (500 mg) | 60 | $9.29 | $0.16 | None | B0C6N1TY3X | — | 2026-10-10 |
| Nutricost L-Carnitine Tartrate 1000 mg per serving (240 Capsules) | Nutricost | 1000 mg L-carnitine (as LCLT) / 2 capsules (1,000 mg) | 120 | $19.95 | $0.17 | None (NSF-registered facility) | B06Y1BTLGK | — | 2026-10-10 |
| NOW L-Carnitine 500 mg, Free-Form (180 Veg Capsules) | NOW Foods | 500 mg L-carnitine / 1 capsule (500 mg) | 180 | $31.90 | $0.18 | None (cGMP) | B0013OSLRG | — | 2026-10-10 |
| Jarrow Formulas Acetyl L-Carnitine 500 mg (120 Veggie Capsules) | Jarrow Formulas | 500 mg acetyl-L-carnitine / 1 capsule (500 mg) | 120 | $33.16 | $0.27 | None | B0027DWNHQ | — | 2026-10-10 |
| BulkSupplements Acetyl L-Carnitine Powder, 1.5 g per serving (100 g) | BulkSupplements | 1500 mg acetyl-L-carnitine / 1.5 g scoop | 66 | $21.97 | $0.33 | None (third-party tested) | B00E7H96CK | — | 2026-10-10 |
| Doctor's Best Acetyl-L-Carnitine 1000 mg per serving (120 Veg Caps) | Doctor's Best | 1000 mg acetyl-L-carnitine / 2 capsules (1,000 mg) | 60 | $22.99 | $0.38 | None | B000NRXO8A | — | 2026-10-10 |
| NOW L-Carnitine Liquid 1000 mg, Citrus (16 oz) | NOW Foods | 1000 mg L-carnitine / 1 tbsp (1,000 mg) | 31 | $15.92 | $0.51 | None (cGMP) | B0013OQLBE | — | 2026-10-10 |
| Thorne Acetyl-L-Carnitine 500 mg (60 Capsules) | Thorne | 500 mg acetyl-L-carnitine / 1 capsule (500 mg) | 60 | $32.00 | $0.53 | Third-party certified (Thorne / NSF) | B005P0UYGA | — | 2026-10-10 |
| Nature's Bounty L-Carnitine 500 mg (30 Tablets) | Nature's Bounty | 500 mg L-carnitine / 1 tablet (500 mg) | 30 | $18.32 | $0.61 | None | B000KOOARU | — | 2026-10-10 |
| Biolor Propionyl-L-Carnitine (PLC) HCl (120 Capsules) | Biolor | 1000 mg propionyl-L-carnitine / 2 capsules (~1,000 mg) | 60 | $37.99 | $0.63 | None | B07NVC623M | — | 2026-10-10 |
| Life Extension Optimized Carnitine, three forms incl. 300 mg PLC (60 Capsules) | Life Extension | 1400 mg carnitine blend / 2 capsules (1,400 mg) | 30 | $23.25 | $0.78 | None (NSF-registered facility) | B0792NSRG3 | — | 2026-10-10 |

---

## L Citrulline

**Clinical dose:** 3-6 g/day pure L-citrulline for nitric oxide support (>=6 weeks); 8 g citrulline malate (~5 g actual citrulline) about an hour before training for performance
**Use cases:** nitric oxide support, exercise performance
**Form verdict:** citrulline malate is only ~57-72% actual citrulline (malic acid makes up the rest) — correct for the malate ratio or you under-dose; pure powder skips the math
**Main page:** https://verifiedsupplementdata.com/l-citrulline/best-overall/
**Guides:** https://verifiedsupplementdata.com/l-citrulline/ · https://verifiedsupplementdata.com/l-citrulline/best-overall/ · https://verifiedsupplementdata.com/l-citrulline/dosage-guide/ · https://verifiedsupplementdata.com/l-citrulline/malate-ratio-explained/ · https://verifiedsupplementdata.com/l-citrulline/vs-l-arginine/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| BulkSupplements Citrulline Malate 2:1 Powder (1 kg) | BulkSupplements | 3000 mg compound / 3 g (~1 1/4 tsp) | 333 | $30.97 | $0.25 | Third-party tested, cGMP | B00EYDJU50 | — | 2026-10-10 |
| BulkSupplements L-Citrulline Powder (500 g) | BulkSupplements | 3000 mg compound / 3 g (~1/2 tsp) | 166 | $23.97 | $0.28 | Third-party tested, cGMP | B00NBCVVW0 | — | 2026-10-10 |
| Nutricost Pure L-Citrulline Powder (600 g) | Nutricost | 3000 mg compound / 1 scoop (3 g) | 200 | $29.95 | $0.30 | 3rd-party tested, GMP | B01M2DB8V3 | best-value | 2026-10-10 |
| BulkSupplements Citrulline Malate 1:1 Powder (1 kg) | BulkSupplements | 3000 mg compound / 3 g (~1 tsp) | 333 | $33.97 | $0.36 | Third-party tested, cGMP | B00EYDQLNY | — | 2026-10-10 |
| Nutricost Citrulline Malate 2:1 Powder (600 g) | Nutricost | 3000 mg compound / 1 scoop (3 g) | 200 | $29.95 | $0.41 | 3rd-party tested, GMP | B010RIW67O | — | 2026-10-10 |
| Micro Ingredients L-Citrulline 3,000 mg (240 Capsules) | Micro Ingredients | 3000 mg compound / 4 capsules | 60 | $15.99 | $0.53 | Third-party lab tested, cGMP | B0GN4RPTHP | best-capsule | 2026-10-10 |
| ALLMAX Citrulline Malate 2:1 Powder (300 g) | ALLMAX | 2000 mg compound / 1 scoop (2 g) | 150 | $24.99 | $0.69 | None stated | B077YZS7K7 | — | 2026-10-10 |
| NOW Sports L-Citrulline Pure Powder (4 oz) | NOW Sports | 1500 mg compound / 1/2 tsp (~1.5 g) | 75 | $17.95 | $0.96 | cGMP (NPA A-rated) | B001B4P3UQ | — | 2026-10-10 |
| BulkSupplements L-Citrulline Capsules 3,000 mg (240 ct) | BulkSupplements | 3000 mg compound / 8 capsules | 30 | $19.96 | $1.34 | Third-party tested, cGMP | B0BB8GBTW6 | — | 2026-10-10 |
| BulkSupplements Citrulline Malate 2:1 Capsules (240 ct) | BulkSupplements | 3000 mg compound / 8 capsules | 30 | $18.96 | $1.75 | Third-party tested, cGMP | B0C63HRS5D | — | 2026-10-10 |

---

## L Glutamine

**Clinical dose:** ~5 g/day (conventional, low-risk, not RCT-proven)
**Use cases:** gut/immune/exercise recovery support (largely unproven at normal doses)
**Form verdict:** Commodity molecule — buy the cheapest third-party-tested powder; do not push above ~5 g/day, high experimental doses have been linked to increased mortality
**Main page:** https://verifiedsupplementdata.com/l-glutamine/best-overall/
**Guides:** https://verifiedsupplementdata.com/l-glutamine/ · https://verifiedsupplementdata.com/l-glutamine/best-overall/ · https://verifiedsupplementdata.com/l-glutamine/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Horbaach L-Glutamine 1000 mg (180 Capsules) | Horbaach | 1000 mg L-glutamine / 1 capsule (1 g) | 180 | $10.99 | $0.07 | None | B0C6N2N65F | — | 2026-10-10 |
| Optimum Nutrition L-Glutamine 1000 mg (240 Capsules) | Optimum Nutrition | 1000 mg L-glutamine / 1 capsule (1 g) | 240 | $19.99 | $0.08 | None | B002DYIZCQ | — | 2026-10-10 |
| NOW Sports L-Glutamine 1000 mg (120 Veg Capsules) | NOW Foods | 1000 mg L-glutamine / 1 capsule (1 g) | 120 | $16.39 | $0.13 | None (cGMP) | B0013OQLD2 | — | 2026-10-10 |
| Naked Nutrition Pure L-Glutamine Powder (1 kg, 200 servings) | Naked Nutrition | 5000 mg L-glutamine / 1 scoop (5 g) | 200 | $34.99 | $0.17 | None (3rd-party heavy-metal tested) | B01N41U106 | best-value | 2026-10-10 |
| BulkSupplements L-Glutamine Powder (1 kg) | BulkSupplements | 5000 mg L-glutamine / 1 scoop (5 g) | 200 | $36.97 | $0.18 | None (3rd-party tested) | B00E7TMONG | — | 2026-10-10 |
| Nutricost L-Glutamine Powder (500 g) | Nutricost | 5000 mg L-glutamine / 1 scoop (5 g) | 100 | $22.95 | $0.23 | None (3rd-party tested) | B00SHXE7VK | — | 2026-10-10 |
| MRM L-Glutamine 5000 mg Powder (200 servings) | MRM Nutrition | 5000 mg L-glutamine / 1 scoop (5 g) | 200 | $46.99 | $0.24 | None | B000GFYSNE | — | 2026-10-10 |
| Sports Research L-Glutamine Powder (500 g) | Sports Research | 5000 mg L-glutamine / 1 scoop (5 g) | 100 | $24.95 | $0.25 | None found in a public registry | B0CCK2T1LN | — | 2026-10-10 |
| BulkSupplements L-Glutamine Powder (500 g) | BulkSupplements | 5000 mg L-glutamine / 1 scoop (5 g) | 100 | $24.97 | $0.25 | None (3rd-party tested) | B00E7TMOOA | — | 2026-10-10 |
| NOW Sports L-Glutamine Pure Powder (1 lb) | NOW Foods | 5000 mg L-glutamine / 1 rounded tsp (5 g) | 90 | $23.10 | $0.25 | None (cGMP) | B0013OXEKK | — | 2026-10-10 |
| Optimum Nutrition L-Glutamine Powder (1000 g) | Optimum Nutrition | 5000 mg L-glutamine / 1 scoop (5 g) | 194 | $55.99 | $0.29 | None found in a public registry | B000GIUQR8 | — | 2026-10-10 |
| Life Extension L-Glutamine Powder (100 g) | Life Extension | 2000 mg L-glutamine / 1/2 tsp (2 g) | 50 | $16.50 | $0.33 | None | B00028MW7Y | — | 2026-10-10 |
| Thorne L-Glutamine Powder (513 g, 90 servings) | Thorne | 5000 mg L-glutamine / 1 scoop (5 g) | 90 | $67.00 | $0.74 | NSF Certified for Sport | B000FGWDL8 | — | 2026-10-10 |

---

## L Theanine

**Clinical dose:** no U.S. dose; Health Canada lists 200 to 250 mg a day for adults; one-dose trials used 50 to 400 mg, 200 mg most often; caffeine pairs ran about 0.8:1 to 2.4:1 L-theanine to caffeine
**Use cases:** attention and reaction time (often paired with caffeine) and stress and sleep questionnaires, measured mostly in small one-dose trials in healthy adults; several trials were run or funded by tea or L-theanine makers
**Form verdict:** count mg of L-theanine per serving and per capsule: several 200 mg and 400 mg labels mean 2 pieces; Suntheanine (a branded form used in some trials) and AlphaWave are the same molecule as unbranded L-theanine
**Main page:** https://verifiedsupplementdata.com/l-theanine/
**Guides:** https://verifiedsupplementdata.com/l-theanine/ · https://verifiedsupplementdata.com/l-theanine/best-overall/ · https://verifiedsupplementdata.com/l-theanine/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| BulkSupplements L-Theanine Powder (250 g) | BulkSupplements | 200 mg / about 200 mg of powder | 1250 | $22.97 | $0.01 | Third party tested (brand claim) | B00E7GESKG | — | 2026-10-10 |
| Nutricost L-Theanine Powder (100 g) | Nutricost | 200 mg / 1 scoop (0.2 g) | 500 | $15.95 | $0.04 | Third-Party Tested (brand claim) | B01AAVGK70 | — | 2026-10-10 |
| Nutricost Caffeine with L-Theanine 100 mg each (240 Capsules) | Nutricost | 100 mg / 1 capsule | 240 | $13.95 | $0.06 | Third-party tested (brand claim) | B08YJ9QHG2 | — | 2026-10-10 |
| Nature's Trove L-Theanine 200 mg (120 Vegetarian Capsules) | Nature's Trove | 200 mg / 1 capsule | 120 | $9.98 | $0.09 | None | B01D1YQBOK | — | 2026-10-10 |
| Vitamatic L-Theanine 200 mg with Caffeine 100 mg (120 Tablets) | Vitamatic | 200 mg / 1 tablet | 120 | $9.99 | $0.09 | None | B09PK3JJN7 | — | 2026-10-10 |
| Nutricost L-Theanine 200 mg (120 Capsules) | Nutricost | 200 mg / 1 capsule | 120 | $11.95 | $0.10 | Third Party Tested (brand claim) | B01B3RWQNM | — | 2026-10-10 |
| NOW L-Theanine 100 mg with Decaf Green Tea (90 Veg Capsules) | NOW Foods | 100 mg / 1 veg capsule | 90 | $11.43 | $0.13 | None | B0013OXESM | — | 2026-10-10 |
| Double Wood L-Theanine 200 mg (120 Capsules) | Double Wood | 200 mg / 1 capsule | 120 | $19.95 | $0.16 | Third-party tested; COAs published (brand claim) | B076MBQDC1 | — | 2026-10-10 |
| Horbaach L-Theanine 400 mg per serving (120 Capsules) | Horbaach | 400 mg / 2 capsules | 60 | $9.89 | $0.16 | None | B07Z9K1LM2 | — | 2026-10-10 |
| NOW L-Theanine 200 mg with Inositol (120 Veg Capsules) | NOW Foods | 200 mg / 1 veg capsule | 120 | $20.60 | $0.17 | None | B00GQV9YX6 | best-value | 2026-10-10 |
| Nootropics Depot L-Theanine 200 mg (90 Capsules) | Nootropics Depot | 200 mg / 1 capsule | 90 | $19.99 | $0.22 | Third-party lab tested (brand claim) | B01F261DFW | — | 2026-10-10 |
| Nature Made Chewable L-Theanine 200 mg (50 Chewable Tablets) | Nature Made | 200 mg / 1 chewable tablet | 50 | $11.89 | $0.24 | None | B0BX7HP6FB | — | 2026-10-10 |
| Doctor's Best L-Theanine 150 mg with Suntheanine (90 Veggie Capsules) | Doctor's Best | 150 mg / 1 veggie capsule | 90 | $21.99 | $0.25 | None | B001OXTGVG | — | 2026-10-10 |
| Sports Research L-Theanine 200 mg with Suntheanine (60 Softgels) | Sports Research | 200 mg / 1 softgel | 60 | $19.95 | $0.33 | Third Party Tested (brand claim) | B00TXY32FY | budget | 2026-10-10 |
| NutraHarmony L-Theanine 400 mg per serving (120 Capsules) | NutraHarmony | 400 mg / 2 capsules | 60 | $19.89 | $0.33 | Third-party lab-tested (brand claim) | B0C9N1Q5QS | — | 2026-10-10 |
| Jarrow Formulas Theanine 200 mg (60 Veggie Capsules) | Jarrow Formulas | 200 mg / 1 veggie capsule | 60 | $22.99 | $0.38 | None | B001EHBF5W | — | 2026-10-10 |
| BrainMD L-Theanine Gummies, Sugar-Free (60 Gummies) | BrainMD | 100 mg / 1 gummy | 60 | $23.95 | $0.40 | None | B0BBSTN33Q | — | 2026-10-10 |
| Nootropics Depot Caffeine 100 mg + L-Theanine 200 mg (60 Capsules) | Nootropics Depot | 200 mg / 1 capsule | 60 | $23.99 | $0.40 | Third-party lab tested (brand claim) | B01B6E2JPC | — | 2026-10-10 |
| Swanson Suntheanine L-Theanine 200 mg (60 Vegan Capsules) | Swanson | 200 mg / 1 vegan capsule | 60 | $25.49 | $0.42 | None | B00DECMJL4 | — | 2026-10-10 |
| Life Extension L-Theanine (AlphaWave, 60 Capsules) | Life Extension | 200 mg / 2 capsules | 30 | $18.00 | $0.60 | None | B00BSH7LXS | — | 2026-10-10 |
| OLLY Goodbye Stress Gummies, Berry Verbena (42 Gummies) | OLLY | 50 mg / 2 gummies | 21 | $12.88 | $0.61 | NSF Contents Certified (label seal) | B01M1HYRNJ | — | 2026-10-10 |
| Momentous L-Theanine 200 mg (60 Capsules) | Momentous | 200 mg / 1 capsule | 60 | $39.99 | $0.67 | NSF Certified for Sport | B09WX16SJB | — | 2026-10-10 |
| kindnature L-Theanine 200 mg Gummies (60 Gummies) | kindnature | 200 mg / 2 gummies | 30 | $21.95 | $0.73 | 3rd-Party Lab Tested (brand claim) | B0CZ6TMTW8 | — | 2026-10-10 |
| Thorne Theanine 200 mg (90 Capsules) | Thorne | 200 mg / 1 capsule | 90 | $68.00 | $0.76 | Thorne Verified; NSF Contents Certified (label seal) | B0797BLW59 | quality | 2026-10-10 |

---

## L Tyrosine

**Clinical dose:** ~2 g at the low end, up to 100-150 mg/kg (~7-13 g), as a single dose 30-120 min before the stressor
**Use cases:** acute stressors — cold exposure, sleep deprivation, high cognitive load
**Form verdict:** Free-form L-tyrosine, taken as a single pre-load before a stressor — not a daily supplement; powder is far cheaper per studied gram than capsules
**Main page:** https://verifiedsupplementdata.com/supplements/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| BulkSupplements L-Tyrosine Powder, 500 mg per serving (250 g) | BulkSupplements | 500 mg L-tyrosine / ~1/8 tsp (500 mg) | 500 | $11.97 | $0.02 | None (third-party lab tested) | B00ENQL68C | — | 2026-10-10 |
| BulkSupplements N-Acetyl L-Tyrosine (NALT) Powder, 400 mg per serving (500 g) | BulkSupplements | 400 mg NALT / 400 mg scoop | 1250 | $30.97 | $0.02 | None (third-party lab tested) | B00ENQYI8M | — | 2026-10-10 |
| Nutricost L-Tyrosine Powder, 1,000 mg per serving (500 g) | Nutricost | 1000 mg L-tyrosine / 1 g scoop | 500 | $26.95 | $0.05 | None (third-party lab tested) | B078THL2V5 | best-value | 2026-10-10 |
| Nutricost L-Tyrosine 500 mg (180 Capsules) | Nutricost | 500 mg L-tyrosine / 1 capsule (500 mg) | 180 | $14.95 | $0.08 | None (ISO-lab tested) | B01AMSMDY0 | — | 2026-10-10 |
| NOW L-Tyrosine 500 mg (120 Veg Capsules) | NOW Foods | 500 mg L-tyrosine / 1 capsule (500 mg) | 120 | $9.99 | $0.08 | None (cGMP, UL-tested) | B0013OUPSE | — | 2026-10-10 |
| Nutricost N-Acetyl L-Tyrosine (NALT) 350 mg (120 Capsules) | Nutricost | 350 mg NALT / 1 capsule (350 mg) | 120 | $12.95 | $0.11 | None | B079NQ1XXW | — | 2026-10-10 |
| Horbaach L-Tyrosine 1,000 mg (250 Capsules) | Horbaach | 1000 mg L-tyrosine / 2 capsules (1,000 mg) | 125 | $17.59 | $0.14 | None | B0CZM6PD9H | — | 2026-10-10 |
| NOW L-Tyrosine 750 mg (90 Veg Capsules) | NOW Foods | 750 mg L-tyrosine / 1 capsule (750 mg) | 90 | $12.24 | $0.14 | None (cGMP) | B0019LWVLA | — | 2026-10-10 |
| Double Wood L-Tyrosine 1,000 mg per serving (120 Capsules) | Double Wood | 1000 mg L-tyrosine / 2 capsules (1,000 mg) | 60 | $8.95 | $0.15 | None (third-party tested) | B0CLDVR7X8 | — | 2026-10-10 |
| Jarrow Formulas L-Tyrosine 500 mg (100 Capsules) | Jarrow Formulas | 500 mg L-tyrosine / 1 capsule (500 mg) | 100 | $14.67 | $0.15 | None | B001HZ098U | — | 2026-10-10 |
| Solaray L-Tyrosine 500 mg (100 Capsules) | Solaray | 500 mg L-tyrosine / 1 capsule (500 mg) | 100 | $19.59 | $0.20 | None | B00020I1AY | — | 2026-10-10 |

---

## Lactoferrin

**Clinical dose:** 100-250 mg/day (iron studies); 200-600 mg/day (general-immune RCT); most retail capsules deliver 250-300 mg/day at 1 capsule — no dose shown superior on a clinical (not surrogate) endpoint
**Use cases:** general immune support
**Form verdict:** Apolactoferrin (iron-depleted) is the form used in most immune trials, but most labels don't disclose iron-saturation
**Main page:** https://verifiedsupplementdata.com/lactoferrin/best-overall/
**Guides:** https://verifiedsupplementdata.com/lactoferrin/ · https://verifiedsupplementdata.com/lactoferrin/best-overall/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Piping Rock Lactoferrin 300mg | Piping Rock | 300 mg lactoferrin / 1 capsule | 90 | $25.99 | $0.29 | None claimed | B0BMW3Q98B | lowest-cost-per-day | 2026-10-10 |
| Best Naturals Lactoferrin 250mg | Best Naturals | 250 mg lactoferrin / 1 veggie capsule | 60 | $21.50 | $0.36 | None claimed | B07XYDNWDN | budget | 2026-10-10 |
| Nutricost Lactoferrin 300mg | Nutricost | 300 mg lactoferrin / 1 capsule | 60 | $29.95 | $0.50 | Third-party tested per label (brand claim) | B0CK41XN21 | best-value-studied-dose | 2026-10-10 |
| Vitamatic Apolactoferrin 250mg | Vitamatic | 250 mg lactoferrin / 1 capsule | 60 | $29.99 | $0.50 | None claimed | B09RQK6XS3 | apolactoferrin-disclosed | 2026-10-10 |
| Jarrow Formulas Lactoferrin 250mg | Jarrow Formulas | 250 mg lactoferrin / 1 capsule | 60 | $42.99 | $0.72 | None claimed | B0013OQGBY | best-known-brand | 2026-10-10 |

---

## Lions Mane

**Clinical dose:** about 1 to 3.2 g a day in human trials (2 to 3.2 g a day of dried fruiting body), for 4 to 49 weeks; no trial compared doses; no official dose or upper limit
**Use cases:** cognitive support / general wellness — evidence described by the page as early and inconsistent
**Form verdict:** Read the label for the plant part: mycelium grown on rice or oats is sold with the grain, so its grams include the grain; extracts (8:1, 4:1) are often sold by their raw-mushroom equivalent; few labels state a beta-glucan figure, and that figure (the brand’s own) is the one that compares products
**Main page:** https://verifiedsupplementdata.com/lions-mane/
**Guides:** https://verifiedsupplementdata.com/lions-mane/ · https://verifiedsupplementdata.com/lions-mane/best-overall/ · https://verifiedsupplementdata.com/lions-mane/dosage-guide/ · https://verifiedsupplementdata.com/lions-mane/real-mushrooms-vs-host-defense/ · https://verifiedsupplementdata.com/lions-mane/real-mushrooms-vs-nootropics-depot/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Micro Ingredients Organic Lion's Mane Powder (16 oz) | Micro Ingredients | 1500 mg / 1 scoop (1.5 g) | 302 | $29.99 | $0.09 | 3rd-party tested (brand claim) | B07P2CWWVV | — | 2026-10-10 |
| BulkSupplements Lion's Mane Extract Capsules (360 Capsules) | BulkSupplements | 1000 mg / 2 capsules | 180 | $22.96 | $0.12 | Third-party tested (brand claim) | B0CHGY7LFW | — | 2026-10-10 |
| 365 by Whole Foods Market Lion's Mane 500 mg (90 Capsules) | 365 by Whole Foods Market | 500 mg / 1 capsule | 90 | $18.98 | $0.21 | None | B08LJ443YP | — | 2026-10-10 |
| Nature's Truth Lion's Mane Gummies (60 Gummies) | Nature's Truth | 175 mg / 2 gummies | 30 | $6.49 | $0.22 | None | B0DDCPCN3V | — | 2026-10-10 |
| Nature's Truth Lion's Mane 4:1 Extract with BioPerine (50 Capsules) | Nature's Truth | 525 mg / 1 capsule | 50 | $13.55 | $0.27 | None | B08F2SK15N | — | 2026-10-10 |
| Fungies Lion's Mane Gummies (60 Gummies) | Fungies | 500 mg / 1 gummy | 60 | $17.95 | $0.30 | Tested by SGS (brand claim) | B09K4MBQ22 | — | 2026-10-10 |
| Horbaach Lion's Mane Extract (120 Capsules) | Horbaach | 1050 mg / 2 capsules | 60 | $19.78 | $0.33 | Laboratory tested (no outside lab named) | B08HLFVRB9 | — | 2026-10-10 |
| Double Wood Lion's Mane Mushroom 500 mg (120 Capsules) | Double Wood | 1000 mg / 2 capsules | 60 | $19.95 | $0.33 | Third-party tested (brand claim) | B07PM8X5CG | — | 2026-10-10 |
| Om Lion's Mane Powder (7.05 oz) | Om Mushroom Superfood | 2000 mg / 2 g (about 1 teaspoon) | 100 | $35.95 | $0.36 | Third-party lab tested for heavy metals (brand claim) | B09FD8C16B | — | 2026-10-10 |
| Gaia Herbs Lion's Mane Mushroom (120 Capsules) | Gaia Herbs | 450 mg / 1 capsule | 120 | $56.69 | $0.48 | Tested in its own lab (no outside lab named) | B0BRTCCT8W | — | 2026-10-10 |
| Nutricost Organic Lion's Mane 2,100 mg (90 Capsules) | Nutricost | 2100 mg / 3 capsules | 30 | $14.95 | $0.50 | Third-party tested (brand claim) | B08FV45PC9 | — | 2026-10-10 |
| NOW Lion's Mane 500 mg (60 Veg Capsules) | NOW | 1000 mg / 2 capsules | 30 | $15.59 | $0.52 | Quality tested in the USA (no outside lab named) | B09V3BS25N | — | 2026-10-10 |
| Nootropics Depot Lion's Mane 8:1 Extract (60 Capsules) | Nootropics Depot | 500 mg / 1 capsule | 60 | $32.99 | $0.55 | Third-party lab tested; lot reports posted (brand claim) | B079ZBP341 | value-verified | 2026-10-10 |
| Om Lion's Mane Capsules (180 Capsules) | Om Mushroom Superfood | 2000 mg / 3 capsules | 60 | $33.99 | $0.57 | Third-party lab tested for heavy metals (brand claim) | B08DK3XC9D | — | 2026-10-10 |
| Real Mushrooms Lion's Mane Extract Powder (60 g) | Real Mushrooms | 1000 mg / 1 g (1/2 teaspoon) | 60 | $34.79 | $0.58 | Third-party tested (brand claim) | B01DKZZFCE | — | 2026-10-10 |
| Real Mushrooms Lion's Mane (120 Capsules) | Real Mushrooms | 1000 mg / 2 capsules | 60 | $34.95 | $0.59 | Third-party tested (brand claim) | B078SZX3ML | best-verified | 2026-10-10 |
| FreshCap Lion's Mane 14:1 (120 Capsules) | FreshCap | 1000 mg / 2 capsules | 60 | $39.99 | $0.67 | 3rd-party tested (brand claim) | B081FKDGSC | premium | 2026-10-10 |
| Toniiq Lion's Mane 1,800 mg, 20% Beta-Glucans (120 Capsules) | Toniiq | 1800 mg / 3 capsules | 40 | $27.97 | $0.70 | Third-party lab tested (brand claim) | B08NRLJ7TM | — | 2026-10-10 |
| MaryRuth's Lion's Mane Liquid Drops (1 fl oz) | MaryRuth's | 1180 mg / 1 mL | 30 | $21.90 | $0.73 | None | B08NFM1Q6H | — | 2026-10-10 |
| Sports Research Organic Lion's Mane 1,800 mg (90 Capsules) | Sports Research | 1800 mg / 3 capsules | 30 | $22.95 | $0.77 | Third Party Tested (brand claim) | B0G6Q1TPR1 | — | 2026-10-10 |
| Host Defense Lion's Mane (Mycelium, 120 Capsules) | Host Defense | 1000 mg / 2 capsules | 60 | $47.21 | $0.79 | None | B00OVF9DVM | — | 2026-10-10 |
| Om Lion's Mane Gummies (60 Gummies) | Om Mushroom Superfood | 1000 mg / 2 gummies | 30 | $24.87 | $0.83 | Third-party lab tested for heavy metals (brand claim) | B0B7VKJCFM | — | 2026-10-10 |
| Transparent Labs Mushroom Stack (90 Capsules) | Transparent Labs | 1000 mg / 3 capsules | 30 | $24.99 | $0.83 | Third-party tested (brand claim) | B0FDX41BXW | — | 2026-10-10 |
| Host Defense Lion's Mane Gummies (90 Gummies) | Host Defense | 1000 mg / 3 gummies | 30 | $26.21 | $0.87 | None | B0DSLTV6W2 | — | 2026-10-10 |

---

## Liquid Collagen


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| RejuviCare Liquid Collagen Complex (16 fl oz) | RejuviCare | 0.5 g collagen / 1 tablespoon (15 mL) | 32 | $9.44 | $0.29 | None stated | B005FAH10W | — | 2026-10-10 |
| Nature's Truth Liquid Collagen (16 fl oz) | Nature's Truth | 1 g collagen / 1 tablespoon (15 mL) | 31 | $14.91 | $0.48 | None stated | B0DVZPKK14 | — | 2026-10-10 |
| Youtheory Collagen Liquid 5,000 mg (2 packs of 12 x 1 fl oz packets) | Youtheory | 5 g collagen / 1 packet (30 mL) | 24 | $19.99 | $0.84 | None stated | B0D1G3PYHS | best-value | 2026-10-10 |
| Applied Nutrition Liquid Collagen (20 x 10 mL tubes) | Applied Nutrition | 4 g collagen / 1 tube (10 mL) | 20 | $25.98 | $1.30 | None stated | B008N5C8TA | — | 2026-10-10 |

---

## Liquid Iron


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nature's Way Liquid Iron (480 mL) | Nature's Way | 18 mg / 15 mL | 32 | $9.10 | $0.28 | Tested and Trusted | B006LTCAU2 | — | 2026-10-10 |
| NovaFerrum WOW 125 mg High Potency Liquid Iron (180 mL) | NovaFerrum | 125 mg / 5 mL | 36 | $26.86 | $0.74 | None | B00C2DHB5K | — | 2026-10-10 |
| MegaFood Blood Builder Liquid Iron (7.7 oz) | MegaFood | 27 mg / 10 mL | 23 | $24.99 | $1.08 | None | B09GPY4YV4 | quality | 2026-10-10 |
| Floradix Iron + Herbs liquid (250 mL) | Floradix | 10 mg / 10 mL | 25 | $27.44 | $1.10 | Purity-tested | B08TCBFSNR | — | 2026-10-10 |
| Pure Encapsulations Iron Liquid (120 mL) | Pure Encapsulations | 15 mg / 5 mL | 24 | $38.50 | $1.60 | Certified gluten-free (GFCO) | B007NYYSZ4 | — | 2026-10-10 |

---

## Lutein Zeaxanthin

**Clinical dose:** common studied dose: 10 mg lutein + 2 mg zeaxanthin/day (5:1 ratio); no dose-response trial shows higher amounts work better
**Use cases:** general eye health
**Form verdict:** Match the 5:1 lutein:zeaxanthin ratio used in research, not just the lutein headline mg — some retail products use very different ratios (e.g. 20:1) that deliver a meaningfully different zeaxanthin dose than what was actually tested
**Main page:** https://verifiedsupplementdata.com/lutein-zeaxanthin/best-overall/
**Guides:** https://verifiedsupplementdata.com/lutein-zeaxanthin/ · https://verifiedsupplementdata.com/lutein-zeaxanthin/best-overall/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nutricost Zeaxanthin with Lutein 20 mg | Nutricost | 20 mg lutein / 1 softgel | 120 | $14.95 | $0.12 | None stated | B07Y2H11DP | best-value | 2026-10-10 |
| Doctor's Best Lutein 20 mg with Zeaxanthin (FloraGlo) | Doctor's Best | 20 mg lutein / 1 softgel | 60 | $9.99 | $0.17 | None stated | B001C4R36W | cheapest | 2026-10-10 |
| NOW Foods Lutein & Zeaxanthin | NOW Foods | 25 mg lutein / 1 softgel | 120 | $26.00 | $0.22 | None stated | B0DVNG2VDC | above-areds2-dose | 2026-10-10 |
| Jarrow Formulas Lutein 20 mg with Zeaxanthin | Jarrow Formulas | 20 mg lutein / 1 softgel | 120 | $25.89 | $0.22 | None stated | B01LWLIOCL | — | 2026-10-10 |
| Life Extension MacuGuard Ocular Support with Saffron | Life Extension | 20 mg lutein (per label; zeaxanthin/meso-zeaxanthin split unverified) / 1 softgel | 60 | $17.99 | $0.31 | None stated | B01HFREINK | meso-zeaxanthin-blend | 2026-10-10 |
| Bausch + Lomb PreserVision AREDS 2 | Bausch + Lomb | 10 mg lutein / 2 softgels | 60 | $41.99 | $0.70 | None stated | B0DTY1893M | full-areds2-formula | 2026-10-10 |

---

## Lysine

**Clinical dose:** 1,000-3,000 mg/day used in studies
**Use cases:** general amino acid intake (evidence for other uses is mixed)
**Form verdict:** A single 500 mg tablet once a day is below the doses used in studies, and results across trials are mixed; powder is cheaper per gram for reaching 1-3 g/day
**Main page:** https://verifiedsupplementdata.com/supplements/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nutricost L-Lysine Powder (500 g) | Nutricost | 1000 mg L-lysine / 1 scoop (1 g) | 500 | $15.95 | $0.10 | Manufactured in a GMP facility | B079J3JWQF | best-value | 2026-10-10 |
| BulkSupplements.com L-Lysine Powder (500 g) | BulkSupplements | 1000 mg L-lysine / 1 g (1,000 mg, per label) | 500 | $18.97 | $0.11 | Manufactured in a GMP facility | B00ENP215K | — | 2026-10-10 |
| Nutricost L-Lysine 1,000 mg (240 Tablets) | Nutricost | 1000 mg L-lysine / 1 tablet | 240 | $19.95 | $0.25 | Manufactured in a GMP facility | B0992S2SSQ | — | 2026-10-10 |
| Solgar L-Lysine 1,000 mg (250 Tablets) | Solgar | 1000 mg L-lysine / 1 tablet | 250 | $23.01 | $0.28 | Manufactured in a GMP facility | B00014WXQO | — | 2026-10-10 |
| Nature's Bounty L-Lysine 1,000 mg (60 Tablets) | Nature's Bounty | 1000 mg L-lysine / 1 tablet | 60 | $6.70 | $0.34 | Manufactured in a GMP facility | B000PR35MS | — | 2026-10-10 |

---

## Maca

**Clinical dose:** 1,500-3,000 mg/day, most often 3,000 mg/day (= 4 capsules of a typical 750 mg capsule), for 12 weeks; no published trial has run past 12 weeks
**Use cases:** general vitality (evidence modest)
**Form verdict:** Most maca capsules are 750 mg — reaching the 3,000 mg studied dose needs 4 capsules a day, not one; 0 of 3 tracked products carry any third-party certification
**Main page:** https://verifiedsupplementdata.com/supplements/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nutricost Maca Root 750 mg (180 Capsules, 180 Servings) | Nutricost | 750 mg maca root / 1 capsule | 180 | $15.95 | $0.35 | None | B016398GQG | best-value | 2026-10-10 |
| NusaPure Maca Root Black, Red & Yellow 750 mg (180 Vcaps, 180 Servings) | NusaPure | 750 mg maca root / 1 capsule | 180 | $30.00 | $0.67 | None | B09RWZCZG2 | — | 2026-10-10 |
| NusaPure Peruvian Black Maca Root 750 mg (200 Veg Capsules, 200 Servings) | NusaPure | 750 mg maca root / 1 capsule | 200 | $35.50 | $0.71 | None | B0CX1QKKL2 | premium-alt | 2026-10-10 |

---

## Magnesium Citrate

**Clinical dose:** 200-400 mg elemental magnesium/day
**Use cases:** general magnesium intake; bowel regularity (citrate's specific use)
**Form verdict:** citrate's osmotic pull into the bowel is a feature (not a bug) when regularity is the goal — it draws water into the bowel; well absorbed, clearly better than oxide, moderate GI effects at higher doses
**Main page:** https://verifiedsupplementdata.com/supplements/magnesium-citrate/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| NOW Magnesium Citrate 200 mg (250 Tablets) | NOW Foods | 400 mg / 2 tablets (400 mg elemental) | 125 | $19.99 | $0.16 | None | B000BV1O26 | best-value | 2026-10-10 |
| Natural Vitality Calm Magnesium Citrate Powder (16 oz) | Natural Vitality | 325 mg / 2 tsp (4 g) powder in water | 113 | $15.99 | $0.17 | None | B00BPUY3W0 | convenience | 2026-10-10 |
| Nature Made Magnesium Citrate 250 mg (120 Softgels) | Nature Made | 250 mg / 2 softgels (250 mg elemental) | 60 | $15.33 | $0.41 | USP Verified | B00CU3SX4K | best-verified | 2026-10-10 |

---

## Magnesium Glycinate

**Clinical dose:** 320-500 mg elemental magnesium/day (sleep trials), taken 30-60 minutes before bed for sleep; keep total supplemental elemental magnesium at or below the NIH UL of 350 mg/day unless a clinician advises otherwise
**Use cases:** sleep support, everyday/general magnesium supplementation — the gentlest common form
**Form verdict:** Best-absorbed common form and gentlest on the stomach (the glycine component has its own calming effect) — a default pick for sleep and general daily use; avoids the laxative effect seen with citrate and oxide
**Main page:** https://verifiedsupplementdata.com/supplements/magnesium-glycinate/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| BulkSupplements Magnesium Glycinate Powder (250 g) | BulkSupplements.com | 300 mg / 2.2 g powder (3/4 tsp) | 114 | $19.97 | $0.23 | None | B00F7OZJQE | budget | 2026-10-10 |
| Nature Made Magnesium Glycinate 200mg | Nature Made | 200 mg / 1 capsule | 60 | $11.70 | $0.39 | USP Verified | B08XXHCGZT | best-value | 2026-10-10 |
| Vitamin Shoppe Magnesium Glycinate 400 mg (135 tablets) | The Vitamin Shoppe | 400 mg / 3 tablets | 45 | $19.94 | $0.44 | None | B0DZLYHSVN | full-dose | 2026-10-10 |
| Doctor's Best High Absorption Magnesium | Doctor's Best | 200 mg / 2 tablets | 60 | $13.99 | $0.46 | None | B00151G8L8 | — | 2026-10-10 |
| KAL Magnesium Glycinate 350 mg (240 VegCaps) | KAL | 350 mg / 4 VegCaps | 60 | $24.79 | $0.47 | None | B09K4H6H96 | — | 2026-10-10 |
| Thorne Magnesium Glycinate (90 capsules) | Thorne | 120 mg / 1 capsule | 90 | $26.00 | $0.96 | NSF/ANSI 173 | B0F5XYHRPV | — | 2026-10-10 |

---

## Magnesium Glycinate Value


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nutricost Magnesium Glycinate 210 mg (360 capsules) | Nutricost | 210 mg / 3 capsules | 120 | $21.95 | $0.18 | None stated (third-party tested claim) | B0CV2SXX5M | budget | 2026-10-10 |
| NOW Magnesium Bisglycinate Powder (8 oz) | NOW Foods | 250 mg / 1 level teaspoon (~2.9 g) | 78 | $14.69 | $0.19 | NPA GMP Certified, Non-GMO Project Verified | B00NIJ03C0 | powder | 2026-10-10 |
| NOW Magnesium Glycinate 200 mg (240 tablets) | NOW Foods | 200 mg / 2 tablets | 120 | $26.12 | $0.22 | NPA GMP Certified | B0CB984SHQ | — | 2026-10-10 |
| Nature's Bounty High Absorption Magnesium Glycinate 240 mg (120 capsules) | Nature's Bounty | 240 mg / 2 capsules | 60 | $15.97 | $0.27 | None | B0DT1JKGPH | — | 2026-10-10 |

---

## Magnesium Gummies


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Vitamatic Magnesium Citrate Gummies 600 mg (60 count) | Vitamatic | 70 mg elemental magnesium / 2 gummies | 30 | $12.99 | $0.42 | None stated | B0982JTZ7C | — | 2026-10-10 |
| Nature Made Magnesium Glycinate Gummies 100 mg (40 count) | Nature Made | 100 mg elemental magnesium / 2 gummies | 20 | $15.79 | $0.79 | None stated | B0CBVZ9B2G | best-value | 2026-10-10 |

---

## Magnesium L Threonate

**Clinical dose:** Typical dose ~2,000 mg magnesium L-threonate/day, providing only ~144 mg elemental magnesium (7.2% elemental by weight) — too little to serve as a sole magnesium source; a 2026 human RCT of 100 adults found improved cognition (p=0.043) at this dose
**Use cases:** cognitive support / brain magnesium — emerging evidence; NOT a substitute for general magnesium repletion
**Form verdict:** The only form shown to cross the blood-brain barrier and raise brain magnesium in animal studies; patented (Magtein) and pricier ($0.70-1.50/day vs $0.18-0.87 for glycinate) — reasonable for a cognitive-specific goal, but pair with glycinate for general magnesium/sleep needs since it can't cover the 300-400 mg elemental target alone
**Main page:** https://verifiedsupplementdata.com/supplements/magnesium-l-threonate/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Double Wood Magnesium L-Threonate (120 Capsules) | Double Wood | 144 mg / 4 capsules (2,000 mg Magtein) | 30 | $29.95 | $1.00 | None | B01M4GM9R1 | — | 2026-10-10 |
| NOW Magtein Magnesium L-Threonate (90 Veg Capsules) | NOW Foods | 144 mg / 3 capsules (2,000 mg Magtein) | 30 | $30.40 | $1.01 | None | B00JEZQAFG | — | 2026-10-10 |
| Life Extension Neuro-Mag Magnesium L-Threonate (90 Capsules) | Life Extension | 144 mg / 3 capsules (2,000 mg Magtein / 144 mg elemental) | 30 | $30.78 | $1.02 | None | B006P536E6 | best-value | 2026-10-10 |

---

## Magnesium Oxide

**Clinical dose:** no established clinical dose — see page
**Use cases:** antacid and laxative use (NOT magnesium repletion)
**Form verdict:** do not use oxide for magnesium repletion or deficiency correction — only about 4% bioavailable (96% passes through unabsorbed); its low absorption is useful only as the mechanism for an antacid or laxative, not as a systemic supplementation dose
**Main page:** https://verifiedsupplementdata.com/magnesium/oxide-vs-glycinate/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nature Made Magnesium Oxide 250 mg (200 Tablets) | Nature Made | 250 mg / 1 tablet (250 mg elemental) | 200 | $6.79 | $0.05 | None | B0002VG3QC | — | 2026-10-10 |

---

## Manganese

**Clinical dose:** 1.8-2.3 mg/day AI (women/men); UL 11 mg/day; AI-range retail tier is 6-10 mg/day
**Use cases:** bone/mineral formulas, general mineral support — most people don't need a standalone supplement
**Form verdict:** Pick the lowest AI-range dose (6-10mg elemental); avoid the 5 of 9 tracked products dosed 1.8-20x the UL; no RCT supports megadosing
**Main page:** https://verifiedsupplementdata.com/supplements/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Source Naturals Manganese 10mg | Source Naturals | 10 mg elemental manganese / 1 tablet | 250 | $11.05 | $0.04 | None stated | B000EQ2S28 | — | 2026-10-10 |
| BulkSupplements.com Manganese Gluconate Powder | BulkSupplements.com | 225 mg elemental manganese / 1 labeled serving (scoop) | 444 | $18.97 | $0.04 | None stated | B00HGULXH6 | — | 2026-10-10 |
| SOLARAY Manganese Supplement 50mg | Solaray | 50 mg elemental manganese / 1 capsule | 100 | $8.49 | $0.08 | None stated | B00020I0QO | — | 2026-10-10 |
| Nutricost Chelated Manganese 8mg | Nutricost | 8 mg elemental manganese / 1 capsule | 120 | $11.95 | $0.10 | None stated | B09WBRPB8V | — | 2026-10-10 |
| Carlson Chelated Manganese 20mg | Carlson | 20 mg elemental manganese / 1 capsule | 100 | $10.03 | $0.10 | None stated | B06XRZZSRF | — | 2026-10-10 |
| Taste N' Score Manganese Liquid Ionic 6mg | Taste N' Score | 6 mg elemental manganese / 1 serving (dropper) | 118 | $18.50 | $0.16 | None stated | B00I2WWB64 | lowest-dose | 2026-10-10 |
| Ecological Formulas Manganese Picolinate 20mg | Ecological Formulas | 20 mg elemental manganese / 1 capsule | 60 | $21.59 | $0.36 | None stated | B003TVD3U6 | — | 2026-10-10 |

---

## Mct Oil

**Clinical dose:** Typical retail/study dose 15-45 g/day (1-3 tbsp); start at ~5g (1 tsp) and titrate up over 1-2 weeks to avoid GI distress
**Use cases:** ketosis support, exogenous ketone/energy source (keto-adjacent)
**Form verdict:** Pure C8 is most ketogenic per gram (~3x C10, ~6x C12/coconut); blends and coconut-derived oils are less potent and usually don't disclose the C8 ratio
**Main page:** https://verifiedsupplementdata.com/mct-oil/best-overall/
**Guides:** https://verifiedsupplementdata.com/mct-oil/ · https://verifiedsupplementdata.com/mct-oil/best-overall/ · https://verifiedsupplementdata.com/mct-oil/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Sports Research Organic MCT Oil | Sports Research | 14 g / 1 tbsp (15mL) | 64 | $26.95 | $0.42 | None stated | B00XM0Y9SE | lowest-cost-per-serving | 2026-10-10 |
| Nature's Way Organic MCT Oil | Nature's Way | 14 g / 1 tbsp (15mL) | 32 | $13.58 | $0.42 | None stated | B0181U4TOI | — | 2026-10-10 |
| Bulletproof C8 & C10 MCT Oil | Bulletproof | 14 g / 1 tbsp (15mL) | 32 | $18.99 | $0.59 | None stated | B00R7FFOLG | best-value-blend | 2026-10-10 |
| Bulletproof Brain Octane C8 MCT Oil | Bulletproof | 14 g / 1 tbsp (15mL) | 32 | $29.99 | $0.94 | None stated | B00P8E0QQG | most-ketogenic | 2026-10-10 |
| Nutricost C8 MCT Oil Powder (95% C8) | Nutricost | 15 g / 15g powder (standardized reference serving; check label scoop size for actual MCT content) | 30 | $28.95 | $0.97 | None stated | B071P7W9LX | most-c8-concentrated-powder | 2026-10-10 |
| Sports Research Organic MCT Oil Powder | Sports Research | 15 g / 15g powder (standardized reference serving; check label scoop size for actual MCT content) | 20 | $24.95 | $1.26 | None stated | B06XRKBD7X | — | 2026-10-10 |

---

## Melatonin

**Clinical dose:** 0.5-1 mg for most adults, 30-60 min before bed; low doses performed similarly to 3-10 mg in trials, with less grogginess; benefit plateaus around 4mg
**Use cases:** sleep timing, jet lag, shift-work schedules — not proven for staying asleep in healthy adults
**Form verdict:** Pick a low dose (0.3-1mg) with third-party verification (USP/NSF) — independent testing found most products don't match label content, especially gummies
**Main page:** https://verifiedsupplementdata.com/melatonin/best-overall/
**Guides:** https://verifiedsupplementdata.com/melatonin/ · https://verifiedsupplementdata.com/melatonin/1-mg/ · https://verifiedsupplementdata.com/melatonin/best-overall/ · https://verifiedsupplementdata.com/melatonin/cost-per-dose/ · https://verifiedsupplementdata.com/melatonin/dosage-guide/ · https://verifiedsupplementdata.com/melatonin/gummies/ · https://verifiedsupplementdata.com/melatonin/side-effects/ · https://verifiedsupplementdata.com/melatonin/third-party-tested/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nature Made Melatonin 3 mg | Nature Made | 3 mg / 1 tablet | 240 | $10.73 | $0.05 | USP Verified | B005DEK990 | best-value | 2026-10-10 |
| Nature's Bounty Melatonin 3 mg Quick Dissolve | Nature's Bounty | 3 mg / 1 tablet | 120 | $7.44 | $0.06 | None | B074NCHHQY | — | 2026-10-10 |
| Life Extension Melatonin 300 mcg | Life Extension | 0.3 mg / 1 capsule | 100 | $7.50 | $0.08 | None | B000X9QZZ2 | low-dose | 2026-10-10 |
| Natrol Melatonin 1 mg | Natrol | 1 mg / 1 tablet | 180 | $14.60 | $0.08 | None | B005GU1J4K | — | 2026-10-10 |
| Life Extension Melatonin 6 Hour Timed Release 300 mcg | Life Extension | 0.3 mg / 1 tablet | 100 | $9.00 | $0.09 | None | B00CDABRUW | maintenance | 2026-10-10 |

---

## Melatonin 1mg


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Carlyle Melatonin 1 mg (300 tablets) | Carlyle | 1 mg / 1 tablet | 300 | $9.99 | $0.03 | None stated (laboratory tested claim) | B08L9ZKHCK | budget | 2026-10-10 |
| Source Naturals Sleep Science Melatonin 1 mg (300 lozenges) | Source Naturals | 1 mg / 1 lozenge | 300 | $17.85 | $0.06 | Non-GMO Verified | B0014GXK7O | — | 2026-10-10 |
| Life Extension Melatonin 1 mg (60 capsules) | Life Extension | 1 mg / 1 capsule | 60 | $4.39 | $0.07 | None stated (certificate of analysis claim) | B000LVFIX2 | trial | 2026-10-10 |
| Natrol Melatonin 1 mg Fast Dissolve, Strawberry (200 tablets) | Natrol | 1 mg / 1 tablet | 200 | $15.49 | $0.08 | None | B07S5XBJV7 | — | 2026-10-10 |

---

## Melatonin Gummies


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Natrol Melatonin 5 mg Gummies (90 gummies) | Natrol | 5 mg melatonin / 1 gummy | 90 | $7.31 | $0.08 | None stated | B079TD92GS | — | 2026-10-10 |
| Carlyle Melatonin 1 mg Gummies (90 gummies) | Carlyle | 1 mg melatonin / 1 gummy | 90 | $9.99 | $0.11 | None stated | B094LN3898 | low-dose | 2026-10-10 |
| Nature's Truth Low Dose Melatonin 1 mg Gummies (60 gummies) | Nature's Truth | 1 mg melatonin / 1 gummy | 60 | $7.68 | $0.13 | None stated | B097NN8XPZ | low-dose | 2026-10-10 |
| Zarbee's Adult Sleep with Melatonin 3 mg Gummies (60 gummies) | Zarbee's | 3 mg melatonin / 1 gummy | 60 | $23.89 | $0.40 | None stated | B076KTYCD3 | — | 2026-10-10 |

---

## Mens Multivitamin


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nature Made Multi for Him (90 tablets) | Nature Made | 0 multi / 1 tablet | 90 | $10.18 | $0.12 | None stated | B005BD8A08 | best-value | 2026-10-10 |
| Garden of Life Vitamin Code Men (240 capsules) | Garden of Life | 0 multi / 2 capsules | 120 | $68.58 | $1.14 | NSF (stated on label) | B00323NW5C | — | 2026-10-10 |
| Ritual Essential for Men 18+ (60 capsules) | Ritual | 0 multi / 2 capsules | 30 | $36.99 | $1.23 | None stated | B09W355M95 | methylated | 2026-10-10 |

---

## Methylfolate

**Clinical dose:** ~400 mcg/day general (matches folate RDA)
**Use cases:** general folate intake
**Form verdict:** You don't need an MTHFR test to justify methylfolate — folic acid is an option for most people; high-dose folate of any form can mask a B12 deficiency
**Main page:** https://verifiedsupplementdata.com/methylfolate/
**Guides:** https://verifiedsupplementdata.com/methylfolate/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Life Extension Optimized Folate (L-Methylfolate) 1700 mcg | Life Extension | 1700 mcg / 1 tablet | 180 | $19.24 | $0.11 | None | B07LB63PFJ | budget | 2026-10-10 |
| Jarrow Formulas Methyl Folate 400 mcg | Jarrow Formulas | 400 mcg / 1 capsule | 60 | $10.08 | $0.16 | None | B007LEO3OW | best-value | 2026-10-10 |
| Thorne 5-MTHF (Methylfolate) 1 mg | Thorne | 1000 mcg / 1 capsule | 60 | $24.00 | $0.40 | NSF Certified for Sport (brand-stated; not confirmed in the public registry) | B00FY8IQ7C | quality | 2026-10-10 |

---

## Milk Thistle

**Clinical dose:** ~420 mg silymarin/day (about 200 mg 2-3x/day; studied range ~140-800 mg/day)
**Use cases:** traditional herbal use; silymarin antioxidant support
**Form verdict:** must be a standardized extract disclosing a silymarin % (typically ~70-80%) — silymarin mg = extract mg times silymarin %; most labels don't disclose it so the actual dose is often unverifiable, and only 5 of 12 tracked products disclose it
**Main page:** https://verifiedsupplementdata.com/milk-thistle/
**Guides:** https://verifiedsupplementdata.com/milk-thistle/ · https://verifiedsupplementdata.com/milk-thistle/dosage-guide/ · https://verifiedsupplementdata.com/milk-thistle/silymarin-label-trap/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Swanson Full Spectrum Milk Thistle 500 mg (100 Capsules) | Swanson | 500 mg milk thistle seed / 1 capsule (500 mg) | 100 | $9.30 | $0.08 | None | B003QB0QIQ | — | 2026-10-10 |
| Horbaach Milk Thistle 3000 mg, 4:1 Extract (300 Capsules) | Horbaach | 3000 mg milk thistle (4:1 equiv) / 2 capsules (3000 mg equiv) | 150 | $17.99 | $0.11 | None | B08BJ8Y4W2 | — | 2026-10-10 |
| NOW Foods Silymarin Milk Thistle Extract 300 mg, Double Strength (100 Capsules) | NOW Foods | 300 mg milk thistle extract / 1 capsule (300 mg) | 100 | $16.47 | $0.16 | None (GMP) | B0013OSRV6 | best-value | 2026-10-10 |
| Jarrow Formulas Milk Thistle 150 mg, 30:1 Standardized (100 Capsules) | Jarrow Formulas | 150 mg milk thistle extract / 1 capsule (150 mg) | 100 | $16.51 | $0.17 | None (Non-GMO) | B000I4FCAG | — | 2026-10-10 |
| Nature's Bounty Milk Thistle 1000 mg, Rapid Release Softgels (50 ct) | Nature's Bounty | 1000 mg milk thistle / 1 softgel (1000 mg) | 50 | $8.46 | $0.17 | None | B002QMB63A | — | 2026-10-10 |
| Nature's Way Milk Thistle, 175 mg Seed Extract, 80% Silymarin (60 Capsules) | Nature's Way | 175 mg milk thistle extract / 1 capsule (175 mg) | 60 | $14.15 | $0.22 | None (TRU-ID authenticated) | B000RG6A92 | — | 2026-10-10 |
| Pure Encapsulations Silymarin 250 mg (120 Capsules) | Pure Encapsulations | 250 mg milk thistle extract / 1 capsule (250 mg) | 120 | $45.00 | $0.38 | None (hypoallergenic) | B07BSKQ5NJ | — | 2026-10-10 |
| Himalaya Milk Thistle Liver Support 350 mg (60 Capsules) | Himalaya | 350 mg herb blend / 1 capsule (350 mg) | 60 | $26.00 | $0.43 | USDA Organic + Non-GMO Verified | B0D9HY5CZ2 | — | 2026-10-10 |
| Solaray Milk Thistle One Daily, Seed Extract 350 mg (60 Capsules) | Solaray | 350 mg milk thistle extract / 1 capsule (350 mg) | 60 | $28.41 | $0.47 | None (lab verified) | B000NIAVT4 | — | 2026-10-10 |
| Thorne Milk Thistle Phytosome (Siliphos) (90 Capsules) | Thorne | null mg silybin phytosome / 1 capsule | 90 | $48.00 | $0.54 | Third-party certified (Thorne) | B001PLKZKI | — | 2026-10-10 |
| Thorne S.A.T. — Milk Thistle + Artichoke + Turmeric (60 Capsules) | Thorne | null mg herb blend / 1 capsule | 60 | $47.00 | $0.78 | Third-party certified (Thorne) | B0012TME2U | — | 2026-10-10 |
| Gaia Herbs Milk Thistle Seed, Liquid Phyto-Caps (120 Capsules) | Gaia Herbs | null mg milk thistle seed / 3 capsules | 40 | $51.29 | $1.28 | None | B005ACNNLG | — | 2026-10-10 |

---

## Msm

**Clinical dose:** Trial range 1.5-6 g/day; joint pilots ~3-6 g/day, exercise-recovery pilots 1.5-3 g/day; a practical target is ~3 g/day
**Use cases:** joint comfort, exercise-recovery soreness (modest, mixed evidence)
**Form verdict:** Same molecule (dimethyl sulfone) in every product — buy the cheapest per gram; OptiMSM buys documented purity/traceability, not a proven better effect
**Main page:** https://verifiedsupplementdata.com/msm/
**Guides:** https://verifiedsupplementdata.com/msm/ · https://verifiedsupplementdata.com/msm/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nutricost Pure MSM Powder 500 g | Nutricost | 1000 mg MSM / 1 g | 500 | $15.95 | $0.03 | None | B01BCR9852 | — | 2026-10-10 |
| NOW MSM 1000 mg (240 Veg Capsules) | NOW Foods | 1000 mg MSM / 1 capsule | 240 | $18.99 | $0.07 | None | B0013OUPXE | — | 2026-10-10 |
| Nature's Way MSM 1000 mg (200 Tablets) | Nature's Way | 1000 mg MSM / 1 tablet | 200 | $18.77 | $0.09 | None | B00016AHIS | — | 2026-10-10 |
| Doctor's Best MSM 1500 mg with OptiMSM (120 Tablets) | Doctor's Best | 1500 mg MSM / 1 tablet | 120 | $11.99 | $0.10 | None | B000NRXNRC | — | 2026-10-10 |
| BESTVITE MSM 1000 mg with OptiMSM (240 Capsules) | BESTVITE | 1000 mg MSM / 1 capsule | 240 | $24.99 | $0.10 | None | B007G420RO | — | 2026-10-10 |
| BulkSupplements MSM Powder 500 g | BulkSupplements | 3000 mg MSM / 3 g | 167 | $18.97 | $0.11 | None | B00AY915BK | — | 2026-10-10 |
| Doctor's Best MSM Powder with OptiMSM (8.8 oz) | Doctor's Best | 2400 mg MSM / 1 scoop | 104 | $12.99 | $0.12 | None | B000BD4DIQ | — | 2026-10-10 |
| Horbaach MSM 1500 mg (240 Capsules) | Horbaach | 1500 mg MSM / 2 capsules | 120 | $13.99 | $0.12 | None | B0CXZFLML8 | — | 2026-10-10 |
| Nutricost MSM 2000 mg (240 Tablets) | Nutricost | 2000 mg MSM / 2 tablets | 120 | $17.95 | $0.15 | None | B09V1VJTGB | — | 2026-10-10 |
| Jarrow Formulas MSM 1000 mg (200 Veg Capsules) | Jarrow Formulas | 1000 mg MSM / 1 capsule | 200 | $33.94 | $0.18 | None | B0001TNVEM | — | 2026-10-10 |
| BulkSupplements MSM 3000 mg (240 Capsules) | BulkSupplements | 3000 mg MSM / 4 capsules | 60 | $18.96 | $0.32 | None | B0B9Q9P9JZ | — | 2026-10-10 |
| Kala Health OptiMSM Powder (250 g) | Kala Health | 1000 mg MSM / 1 tsp | 100 | $39.99 | $0.40 | None | B07RSYHXQB | — | 2026-10-10 |
| Doctor's Best Glucosamine Chondroitin MSM with OptiMSM (360 Capsules) | Doctor's Best | 0 mg MSM / 4 capsules | 90 | $45.99 | $0.51 | None | B00KH6Q8X0 | — | 2026-10-10 |

---

## Multivitamin

**Clinical dose:** no established clinical dose — see page
**Use cases:** general nutrient gap-filling (restricted diets, older adults)
**Form verdict:** no universal multivitamin 'dose' exists — take exactly the labeled serving (one tablet for a one-a-day, or two split between meals for a two-a-day) with a fat-containing meal; more is not proven better, and taking two multivitamins is the most common way people exceed safe upper limits
**Main page:** https://verifiedsupplementdata.com/supplements/multivitamin/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Centrum Adults Under 50 (200 tablets) | Centrum | 0 multi / 1 tablet | 200 | $12.12 | $0.06 | None stated | B09BVYY7XR | — | 2026-10-10 |
| Nature Made Multi Complete with Iron (130 tablets) | Nature Made | 0 multi / 1 tablet | 130 | $10.48 | $0.08 | USP Verified (brand-stated; not confirmed in the public registry) | B00YMSLT88 | — | 2026-10-10 |
| One A Day Men's Complete Multivitamin (200 tablets) | One A Day | 0 multi / 1 tablet | 200 | $17.47 | $0.09 | None stated | B001F71XAI | — | 2026-10-10 |
| NATURELO One Daily Multivitamin for Women | NATURELO | 0 multi / 1 capsule | 60 | $23.95 | $0.40 | None | B01FYD6U06 | best-value | 2026-10-10 |
| Inessa Advanced Multivitamin (60 Tablets) | Inessa | 0 multi / 1 tablet | 60 | $39.99 | $0.67 | Informed Sport (brand-stated; not confirmed in the public registry) | B01H08EUT6 | — | 2026-10-10 |
| Ritual Essential for Women 18+ Multivitamin | Ritual | 0 multi / 2 capsules | 30 | $25.93 | $0.86 | USP Verified | B09W35DHLH | — | 2026-10-10 |
| Thorne Basic Nutrients 2/Day | Thorne | 0 multi / 2 capsules | 30 | $36.00 | $1.20 | NSF Certified for Sport | B00FOTMGTU | quality | 2026-10-10 |

---

## Mushroom Coffee

**Main page:** https://verifiedsupplementdata.com/mushroom-coffee/
**Guides:** https://verifiedsupplementdata.com/mushroom-coffee/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Micro Ingredients Organic Instant Mushroom Coffee, 10-Mushroom Blend (14 oz, 158 servings) | Micro Ingredients | 1 cup / 2 scoops (2.5 g) | 158 | $23.99 | $0.15 | None: not listed in NSF Certified for Sport, NSF/ANSI 173, Informed Sport, Informed Choice or USP Verified (checked 2026-10-01) | B0CWN8C5KR | — | 2026-10-10 |
| Max-Fit Ten Mushrooms Instant Coffee (5 oz, 60 servings) | Max-Fit | 1 cup / 1 tsp | 60 | $17.99 | $0.30 | None: not listed in NSF Certified for Sport, NSF/ANSI 173, Informed Sport, Informed Choice or USP Verified (checked 2026-10-01) | B0C8WGD562 | — | 2026-10-10 |
| Pella Nutrition Instant Mushroom Coffee Blend, Regular Caffeine (6.3 oz, 60 servings) | Pella Nutrition | 1 cup / 1 scoop (3 g) | 60 | $21.99 | $0.37 | None: not listed in NSF Certified for Sport, NSF/ANSI 173, Informed Sport, Informed Choice or USP Verified (checked 2026-10-01) | B0B5VH84J4 | — | 2026-10-10 |
| La Republica Organic Ground Mushroom Coffee, Medium Roast (12 oz, 60 servings) | La Republica | 1 cup / 6 fl oz brewed | 60 | $24.99 | $0.42 | None: not listed in NSF Certified for Sport, NSF/ANSI 173, Informed Sport, Informed Choice or USP Verified (checked 2026-10-01) | B0B75PN7SZ | — | 2026-10-10 |
| Om Mushroom Superfood Instant Coffee with Lion's Mane and Cordyceps (6.13 oz, about 30 servings) | Om Mushroom Superfood | 1 cup / 1 Tbsp (5.8 g) | 30 | $32.99 | $1.10 | None: not listed in NSF Certified for Sport, NSF/ANSI 173, Informed Sport, Informed Choice or USP Verified (checked 2026-10-01) | B09G9B95D2 | — | 2026-10-09 |
| Four Sigmatic Organic Ground Coffee with Lion's Mane and Yacon, Medium Roast (12 oz, about 16 servings) | Four Sigmatic | 1 cup / 4 Tbsp (21 g) | 16 | $18.29 | $1.15 | None: not listed in NSF Certified for Sport, NSF/ANSI 173, Informed Sport, Informed Choice or USP Verified (checked 2026-10-01) | B0FLFC1HF5 | — | 2026-10-10 |
| Four Sigmatic Organic Instant Mushroom Coffee with Lion's Mane and Chaga (2.65 oz, 30 servings) | Four Sigmatic | 1 cup / 1 1/2 tsp (2.5 g) | 30 | $35.00 | $1.17 | None: not listed in NSF Certified for Sport, NSF/ANSI 173, Informed Sport, Informed Choice or USP Verified (checked 2026-10-01) | B0B3YYDP6V | — | 2026-10-10 |
| MUD\WTR Mushroom Coffee, Arabica (5.3 oz tin, 30 servings) | MUD\WTR | 1 cup / 1 Tbsp (5 g) | 30 | $38.99 | $1.30 | None: not listed in NSF Certified for Sport, NSF/ANSI 173, Informed Sport, Informed Choice or USP Verified (checked 2026-10-01) | B0GJTL7WRT | — | 2026-10-10 |
| Everyday Dose Coffee+ Mild Roast with Collagen, Lion's Mane and Chaga (30 servings) | Everyday Dose | 1 cup / 1 Tbsp (7.3 g) | 30 | $39.99 | $1.33 | None: not listed in NSF Certified for Sport, NSF/ANSI 173, Informed Sport, Informed Choice or USP Verified (checked 2026-10-01) | B0B53Y7Z7D | — | 2026-10-10 |
| RYZE Organic Mushroom Coffee, Medium Roast (6.3 oz, 30 servings) | RYZE | 1 cup / 1 Tbsp (6 g) | 30 | $44.99 | $1.50 | None: not listed in NSF Certified for Sport, NSF/ANSI 173, Informed Sport, Informed Choice or USP Verified (checked 2026-10-01) | B0FSGHP1FC | — | 2026-10-10 |
| RYZE Mushroom Coffee Starter Kit, Dark Roast (6.3 oz, 30 servings) | RYZE | 1 cup / 1 Tbsp (6 g) | 30 | $44.99 | $1.50 | None: not listed in NSF Certified for Sport, NSF/ANSI 173, Informed Sport, Informed Choice or USP Verified (checked 2026-10-01) | B0FRVXJTW2 | — | 2026-10-10 |
| MUD\WTR Original Cacao and Chai Coffee Alternative (6.4 oz tin, 30 servings) | MUD\WTR | 1 cup / 1 Tbsp (6 g) | 30 | $49.99 | $1.67 | None: not listed in NSF Certified for Sport, NSF/ANSI 173, Informed Sport, Informed Choice or USP Verified (checked 2026-10-01) | B09MJGMT4V | — | 2026-10-10 |

---

## Myo Inositol

**Clinical dose:** no established clinical dose — see page
**Use cases:** general inositol supplementation
**Form verdict:** the 40:1 myo:D-chiro-inositol ratio is the common commercial formula and physiologically plausible, but treat it as a reasonable default rather than settled science — much of the '40:1 is superior' literature is industry-linked and two key papers now carry formal editorial concerns
**Main page:** https://verifiedsupplementdata.com/supplements/myo-inositol/
**Guides:** https://verifiedsupplementdata.com/myo-inositol/ · https://verifiedsupplementdata.com/myo-inositol/best-overall/ · https://verifiedsupplementdata.com/myo-inositol/dosage-guide/ · https://verifiedsupplementdata.com/myo-inositol/theralogix-vs-micro-ingredients/ · https://verifiedsupplementdata.com/myo-inositol/third-party-tested/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Micro Ingredients Myo & D-Chiro Inositol Powder 40:1 | Micro Ingredients | 2050 mg / 1 scoop (2.05 g) | 221 | $34.95 | $0.31 | None | B0DGRG846L | best-value | 2026-10-10 |
| Ovasitol by Theralogix 90-day supply | Theralogix | 2050 mg / 1 scoop (2.22 g) | 180 | $86.68 | $0.96 | NSF Certified | B0CT6LK1JS | quality | 2026-10-10 |
| Wholesome Story Myo-Inositol & D-Chiro Inositol 40:1 | Wholesome Story | 2050 mg / 4 capsules | 30 | $27.95 | $1.87 | None | B07HX2DMY8 | capsules | 2026-10-10 |

---

## Nac

**Clinical dose:** 600-1,200 mg/day general; 600 mg once or twice daily for mucus
**Use cases:** mucus thinning, general antioxidant/glutathione support
**Form verdict:** Oral NAC has low, single-digit-percent bioavailability regardless of food; split doses above ~600mg; caution combining with nitrate medications or blood thinners
**Main page:** https://verifiedsupplementdata.com/supplements/nac/
**Guides:** https://verifiedsupplementdata.com/nac/ · https://verifiedsupplementdata.com/nac/best-overall/ · https://verifiedsupplementdata.com/nac/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Life Extension NAC 600mg | Life Extension | 600 mg / 1 capsule | 60 | $11.25 | $0.19 | None | B008ML8D4O | — | 2026-10-10 |
| NOW Supplements NAC 600mg | NOW Foods | 600 mg / 1 capsule | 100 | $21.85 | $0.22 | None | B0013OUQ3S | best-value | 2026-10-10 |
| Jarrow Formulas NAC Sustain 600mg | Jarrow Formulas | 600 mg / 1 tablet | 60 | $20.18 | $0.34 | None | B0013OVVK0 | budget | 2026-10-10 |

---

## Nmn

**Clinical dose:** Labels list about 200 to 1,200 mg of NMN per serving; many count 2 capsules as one serving, so read the Supplement Facts panel
**Use cases:** general NMN supplementation
**Form verdict:** Compare cost per 500 mg of NMN and look for a registry listing (NSF/ANSI 173, NSF Certified for Sport or Informed Choice) or a lab report tied to your lot number; "made in an NSF-certified facility" is a factory claim, not a product listing
**Main page:** https://verifiedsupplementdata.com/nmn/third-party-tested/
**Guides:** https://verifiedsupplementdata.com/nmn/ · https://verifiedsupplementdata.com/nmn/best-overall/ · https://verifiedsupplementdata.com/nmn/for-physical-performance/ · https://verifiedsupplementdata.com/nmn/nmn-vs-nr/ · https://verifiedsupplementdata.com/nmn/third-party-tested/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Renue By Science NMN Powder | Renue By Science | 500 mg NMN / 1 scoop (0.5 g) | 200 | $54.95 | $0.27 | Not found in NSF Certified for Sport, NSF/ANSI 173, Informed Sport or Informed Choice (checked 2026-10-01); the brand posts a lab report for each batch number | B0CX8XKZH3 | powder-mid-dose | 2026-10-10 |
| Toniiq Stabilized NMN 300 mg | Toniiq | 300 mg NMN / 2 capsules | 30 | $19.97 | $0.67 | Not found in NSF Certified for Sport, NSF/ANSI 173, Informed Sport or Informed Choice (checked 2026-10-01); the listing says each batch is tested by a third-party lab | B081QL1TJG | trial-dose-match | 2026-10-10 |
| Toniiq NMN 1200 mg | Toniiq | 1200 mg NMN / 2 capsules | 30 | $29.97 | $1.00 | Not found in NSF Certified for Sport, NSF/ANSI 173, Informed Sport or Informed Choice (checked 2026-10-01); the listing says each batch is tested by a third-party lab | B0B8HWTHXH | high-dose-trial-match | 2026-10-10 |
| Double Wood NMN 250 mg | Double Wood | 250 mg NMN / 2 capsules | 30 | $29.95 | $1.00 | Not found in NSF Certified for Sport, NSF/ANSI 173, Informed Sport or Informed Choice (checked 2026-10-01); the listing says every batch is independently verified to 99% purity | B07SVG5N45 | — | 2026-10-10 |
| Genex Formulas NMN 500 mg | Genex Formulas | 500 mg NMN / 2 capsules | 30 | $29.99 | $1.00 | Not found in NSF Certified for Sport, NSF/ANSI 173, Informed Sport or Informed Choice (checked 2026-10-01); the label says it is made in an NSF-registered facility, which is a factory claim, not a product listing; COA on request | B085B63K3R | — | 2026-10-10 |
| ProHealth Longevity NMN Pro 1000 (Uthever) | ProHealth Longevity | 1000 mg NMN / 2 capsules | 30 | $56.71 | $1.89 | Not found in NSF Certified for Sport, NSF/ANSI 173, Informed Sport or Informed Choice (checked 2026-10-01); uses Uthever NMN, a named raw material; the listing says triple lab-tested | B09JL8DS1W | named-raw-material | 2026-10-10 |

---

## Nmn Tested


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| BulkSupplements NMN Powder (100 g) | BulkSupplements | 500 mg NMN / 500 mg | 200 | $25.97 | $0.13 | Not found in NSF Certified for Sport, NSF/ANSI 173, Informed Sport or Informed Choice (checked 2026-10-01) | B08J2NW2VC | — | 2026-10-10 |
| Neurogan Beta NMN 900 mg (90 capsules) | Neurogan | 900 mg NMN / 1 capsule | 90 | $39.95 | $0.44 | Not found in NSF Certified for Sport, NSF/ANSI 173, Informed Sport or Informed Choice (checked 2026-10-01); the listing says it is third-party tested | B0FVGCLR3J | — | 2026-10-10 |
| Nutricost NMN 500 mg (60 capsules) | Nutricost | 500 mg NMN / 2 capsules | 30 | $19.95 | $0.67 | Not found in NSF Certified for Sport, NSF/ANSI 173, Informed Sport or Informed Choice (checked 2026-10-01); the listing says it is made in an NSF-certified facility, which is a factory claim, not a product listing | B09HL4JDQZ | — | 2026-10-10 |
| Transparent Labs NMN 600 mg (30 capsules) | Transparent Labs | 600 mg NMN / 1 capsule | 30 | $29.99 | $1.00 | Informed Choice (product line "NMN", list read 2026-10-01); not found in NSF Certified for Sport, NSF/ANSI 173 or Informed Sport | B0GQWJFB2W | — | 2026-10-10 |
| Codeage Liposomal NMN with TMG (30 capsules) | Codeage | 207.5 mg NMN / 1 capsule | 30 | $37.99 | $1.27 | NSF/ANSI 173 ("Liposomal NMN", 1-capsule serving, Codeage LLC, checked 2026-10-01) | B0BLTZXSG9 | — | 2026-10-10 |
| Cata-Kor NMN with TMG, Quercetin and Resveratrol (60 capsules) | Cata-Kor | 500 mg NMN / 2 capsules | 30 | $39.99 | $1.33 | NSF/ANSI 173 ("Cata-Kor NMN", 2-capsule serving, Reus Research LLC DBA Cata-Kor, checked 2026-10-01) | B0FWGXBT3C | — | 2026-10-10 |
| Elysium Signal NMN (60 capsules) | Elysium Health | 250 mg NMN / 2 capsules | 30 | $42.00 | $1.40 | NSF Certified for Sport (listing 1465217, 60-capsule pack, 2-capsule serving, checked 2026-10-01) | B0BRQQL51Q | — | 2026-10-10 |
| ProHealth NMN Pro 500 (30 capsules) | ProHealth Longevity | 500 mg NMN / 1 capsule | 30 | $42.50 | $1.42 | Not found in NSF Certified for Sport, NSF/ANSI 173, Informed Sport or Informed Choice (checked 2026-10-01); the listing says lab results are published online | B096YRXJKZ | — | 2026-10-10 |
| Renue By Science LIPO NMN (90 capsules) | Renue By Science | 500 mg NMN / 2 capsules | 45 | $64.95 | $1.43 | Not found in NSF Certified for Sport, NSF/ANSI 173, Informed Sport or Informed Choice (checked 2026-10-01); the brand posts a lab report for each batch number | B0CVX1RLHR | — | 2026-10-10 |
| Codeage Liposomal NMN Platinum (90 capsules) | Codeage | 500 mg NMN / 3 capsules | 30 | $75.99 | $2.53 | NSF/ANSI 173 ("Liposomal NMN Platinum", 3-capsule serving, Codeage LLC, checked 2026-10-01) | B09GTV48GS | — | 2026-10-10 |

---

## Nr

**Clinical dose:** Labels list 300 mg NR chloride (Tru Niagen) or 415 mg NR hydrogen malate (Thorne NiaCel) per capsule
**Use cases:** general NR supplementation
**Form verdict:** Two NR products had a buyable Amazon listing when checked, and both are listed in NSF Certified for Sport; compare cost per capsule and the form of NR on the label
**Main page:** https://verifiedsupplementdata.com/nr/best-overall/
**Guides:** https://verifiedsupplementdata.com/nr/ · https://verifiedsupplementdata.com/nr/best-overall/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Thorne NiaCel 400 | Thorne | 415 mg NR / 1 capsule | 60 | $74.00 | $1.23 | NSF Certified for Sport (listing 1423140, 60-capsule pack listed, checked 2026-10-01) | B08WPXPTD8 | nsf-certified-alternative | 2026-10-10 |
| Tru Niagen 300mg | Tru Niagen | 300 mg NR / 1 capsule | 30 | $49.00 | $1.63 | NSF Certified for Sport (listings 1473227 and 1263423, 30-capsule pack listed, checked 2026-10-01) | B07TK5K5TQ | niagen-branded-flagship | 2026-10-10 |

---

## Oil Of Oregano

**Main page:** https://verifiedsupplementdata.com/oil-of-oregano/
**Guides:** https://verifiedsupplementdata.com/oil-of-oregano/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Carlyle Organic Oil of Oregano Drops (2 fl oz) | Carlyle | 34 mg / 0.15 mL (about 5 drops) | 393 | $12.99 | $0.03 | None: not listed in NSF Certified for Sport, NSF/ANSI 173, Informed Sport, Informed Choice or USP Verified (checked 2026-10-06) | B0B94T7BTZ | — | 2026-10-10 |
| Natural Factors Organic Oil of Oregano Drops (2 fl oz) | Natural Factors | 30 mg / 4 drops (0.16 mL) | 375 | $20.99 | $0.06 | None: not listed in NSF Certified for Sport, NSF/ANSI 173, Informed Sport, Informed Choice or USP Verified (checked 2026-10-06) | B00EDJN4KM | — | 2026-10-10 |
| MaryRuth's Organic Oil of Oregano Drops (1 fl oz) | MaryRuth's | 34 mg / 7 drops (about 0.15 mL) | 200 | $15.96 | $0.08 | None: not listed in NSF Certified for Sport, NSF/ANSI 173, Informed Sport, Informed Choice or USP Verified (checked 2026-10-06) | B08NFLNRHY | — | 2026-10-10 |
| NOW Oregano Oil 181 mg (180 softgels) | NOW Foods | 181 mg / 1 softgel (181 mg oregano oil) | 180 | $20.95 | $0.12 | None: not listed in NSF Certified for Sport, NSF/ANSI 173, Informed Sport, Informed Choice or USP Verified (checked 2026-10-06) | B07FYLJYG2 | — | 2026-10-10 |
| Carlyle Oil of Oregano (150 softgels) | Carlyle | 61.6 mg / 2 softgels (61.6 mg oregano extract) | 75 | $9.99 | $0.13 | None: not listed in NSF Certified for Sport, NSF/ANSI 173, Informed Sport, Informed Choice or USP Verified (checked 2026-10-06) | B07G1JRPV9 | — | 2026-10-10 |
| Natural Factors Organic Oil of Oregano 180 mg (60 softgels) | Natural Factors | 180 mg / 1 softgel (180 mg oregano oil) | 60 | $17.47 | $0.29 | None: not listed in NSF Certified for Sport, NSF/ANSI 173, Informed Sport, Informed Choice or USP Verified (checked 2026-10-06) | B00DUHF9MO | — | 2026-10-10 |
| North American Herb & Spice Oreganol P73 (120 softgels) | North American Herb & Spice | 140 mg / 1 softgel (140 mg blend) | 120 | $38.24 | $0.32 | None: not listed in NSF Certified for Sport, NSF/ANSI 173, Informed Sport, Informed Choice or USP Verified (checked 2026-10-06) | B077YCHC7N | — | 2026-10-10 |
| Zane Hellas Oregano Oil 150 mg (60 softgels) | Zane Hellas | 150 mg / 1 softgel (150 mg oregano oil) | 60 | $20.88 | $0.35 | None: not listed in NSF Certified for Sport, NSF/ANSI 173, Informed Sport, Informed Choice or USP Verified (checked 2026-10-06) | B09N6FC9ZD | — | 2026-10-10 |
| Gaia Herbs Oil of Oregano 230 mg (60 capsules) | Gaia Herbs | 230 mg / 1 capsule (230 mg extract) | 60 | $27.89 | $0.46 | None: not listed in NSF Certified for Sport, NSF/ANSI 173, Informed Sport, Informed Choice or USP Verified (checked 2026-10-06) | B0036THMYE | — | 2026-10-10 |

---

## Omega 3

**Clinical dose:** 250-500 mg combined EPA+DHA/day for general health; higher amounts are used only under medical supervision
**Use cases:** general omega-3 intake
**Form verdict:** Read the EPA+DHA line on the Supplement Facts panel, not the 'fish oil' mg on the front
**Main page:** https://verifiedsupplementdata.com/supplements/omega-3/
**Guides:** https://verifiedsupplementdata.com/omega-3/ · https://verifiedsupplementdata.com/omega-3/best-for-brain/ · https://verifiedsupplementdata.com/omega-3/best-for-joint-pain/ · https://verifiedsupplementdata.com/omega-3/best-for-triglycerides/ · https://verifiedsupplementdata.com/omega-3/best-overall/ · https://verifiedsupplementdata.com/omega-3/carlson-vs-nordic-naturals/ · https://verifiedsupplementdata.com/omega-3/cost-per-dose/ · https://verifiedsupplementdata.com/omega-3/dosage-guide/ · https://verifiedsupplementdata.com/omega-3/epa-vs-dha/ · https://verifiedsupplementdata.com/omega-3/forms-compared/ · https://verifiedsupplementdata.com/omega-3/nordic-naturals-vs-now-foods/ · https://verifiedsupplementdata.com/omega-3/nordic-naturals-vs-sports-research/ · https://verifiedsupplementdata.com/omega-3/sports-research-vs-viva-naturals/ · https://verifiedsupplementdata.com/omega-3/third-party-tested/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| NOW Foods Ultra Omega-3 (750mg EPA+DHA) | NOW Foods | 750 mg EPA+DHA / 1 softgel | 180 | $28.94 | $0.48 | None | B000SE5SY6 | — | 2026-10-10 |
| Viva Naturals Triple Strength Omega-3 (2500mg) | Viva Naturals | 2070 mg EPA+DHA / 2 softgels | 90 | $55.96 | $0.62 | IFOS 5-Star | B014LDT0ZM | budget | 2026-10-09 |
| Sports Research Triple Strength Omega-3 (1250mg) | Sports Research | 950 mg EPA+DHA / 1 softgel | 90 | $30.71 | $0.68 | IFOS 5-Star, MSC Certified | B07DX89ZHN | best-value | 2026-10-10 |
| Carlson Elite Omega-3 Gems (1600mg Omega-3) | Carlson | 1400 mg EPA+DHA / 2 softgels | 65 | $42.42 | $0.93 | IFOS 5-Star | B081VWWGCZ | — | 2026-10-10 |
| Nordic Naturals Ultimate Omega (1280mg Omega-3) | Nordic Naturals | 1100 mg EPA+DHA / 2 softgels | 90 | $64.56 | $1.42 | Not IFOS-enrolled (brand lot reports only) | B002CQU564 | quality | 2026-10-10 |
| Sports Research Vegan Omega-3 (Algae Oil, 60 Softgels) | Sports Research | 630 mg EPA+DHA / 1 softgel | 60 | $26.95 | $1.43 | Vegan Certified, Non-GMO Tested | B0842DJJYC | plant-based | 2026-10-10 |
| Nordic Naturals Algae Omega (715mg Omega-3, Vegan), 60 Softgels | Nordic Naturals | 585 mg EPA+DHA / 2 softgels | 30 | $20.24 | $2.30 | Certified Vegan | B0096M62O6 | plant-based | 2026-10-10 |

---

## Phosphatidylserine

**Clinical dose:** 300 mg/day in memory studies (100 mg x3)
**Use cases:** memory/cognition support, exercise stress
**Form verdict:** Source matters more than dose: bovine-cortex PS (the positive-trial ingredient) is discontinued, so every product today is soy or sunflower — a different substance per EFSA. Favor a branded, traceable raw material (Sharp-PS or SerinAid) over undisclosed source.
**Main page:** https://verifiedsupplementdata.com/phosphatidylserine/best-overall/
**Guides:** https://verifiedsupplementdata.com/phosphatidylserine/ · https://verifiedsupplementdata.com/phosphatidylserine/best-overall/ · https://verifiedsupplementdata.com/phosphatidylserine/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Doctor's Best Phosphatidylserine (SerinAid) | Doctor's Best | 100 mg phosphatidylserine / 1 capsule | 120 | $29.99 | $0.25 | SerinAid® branded raw material (Chemi Nutra, soy-derived, traceable supply chain) | B0036FWOJQ | best-value-branded-soy | 2026-10-10 |
| NOW Foods Phosphatidyl Serine 100mg | NOW Foods | 100 mg phosphatidylserine / 1 capsule | 120 | $37.12 | $0.31 | No third-party PS-content testing disclosed; no branded raw material named | B0013OXFTU | — | 2026-10-10 |
| Double Wood Phosphatidylserine 300mg | Double Wood | 300 mg phosphatidylserine / 2 capsules | 60 | $19.95 | $0.33 | Non-GMO soy, standardized to 20%, HPLC/ISO-17025 tested per brand site | B079YF1K1B | cheapest-per-mg-trial-dose-match | 2026-10-10 |
| Swanson Ultra Sunflower Phosphatidylserine (Sharp-PS Green) | Swanson | 100 mg phosphatidylserine / 1 softgel | 90 | $38.99 | $0.43 | Sharp-PS® Green branded raw material (sunflower-derived, genuinely soy-free, traceable supply chain) | B07F91122K | genuine-soy-free-sunflower | 2026-10-10 |
| Jarrow Formulas PS-100 (Sharp-PS) | Jarrow Formulas | 100 mg phosphatidylserine / 1 capsule | 120 | $65.33 | $0.53 | Sharp-PS® branded raw material (soy-derived, traceable supply chain) | B0013OXA8G | — | 2026-10-10 |
| Nutricost Phosphatidylserine 400mg (Soy-Free) | Nutricost | 400 mg phosphatidylserine / 4 capsules | 30 | $23.95 | $0.80 | Labeled soy-free; no third-party PS-content testing disclosed | B08XYDDXDC | — | 2026-10-10 |

---

## Pine Bark Extract

**Clinical dose:** 100-200 mg/day of genuine Pycnogenol (French maritime pine bark extract)
**Use cases:** circulation support, general antioxidant support
**Form verdict:** Genuine trademarked Pycnogenol is the ingredient nearly every positive trial tested; generic pine bark extract has never been tested head-to-head against it and is not proven equivalent, even at a matching mg or standardization percentage.
**Main page:** https://verifiedsupplementdata.com/pine-bark-extract/best-overall/
**Guides:** https://verifiedsupplementdata.com/pine-bark-extract/ · https://verifiedsupplementdata.com/pine-bark-extract/best-overall/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nutricost Pine Bark Extract 300mg (Generic, 95% Standardized, 20:1 Extract) | Nutricost | 300 mg pine bark extract / 1 capsule | 180 | $14.95 | $0.08 | None claimed | B09F13RHPZ | best-generic-disclosed | 2026-10-10 |
| Pure Naturals Pine Bark Extract 100mg (Generic, No Standardization Disclosed) | Pure Naturals | 100 mg pine bark extract / 1 veg capsule | 60 | $7.99 | $0.14 | None claimed | B0CN1F6GMF | — | 2026-10-10 |
| BESTVITE Pycnogenol 100mg (Genuine, Trademarked) | BESTVITE | 100 mg Pycnogenol® / 1 capsule | 120 | $79.99 | $0.66 | Labeled Pycnogenol® (Horphag Research trademark) | B07D2LRHL3 | best-genuine-value | 2026-10-10 |
| Healthy Origins Pycnogenol 100mg (Genuine, Clinically Studied) | Healthy Origins | 100 mg Pycnogenol® / 1 veg capsule | 120 | $94.99 | $0.79 | "100% Clinically Studied French Maritime Pine Bark Extract"; labeled Pycnogenol® | B00C3PKYCE | — | 2026-10-10 |
| Life Extension Pycnogenol 100mg (Genuine, 65% Procyanidins Stated) | Life Extension | 100 mg Pycnogenol® / 1 capsule | 60 | $51.75 | $0.86 | Labeled Pycnogenol®; "std. to 65% procyanidins" stated on label | B00B0YI97Q | pct-disclosed | 2026-10-10 |
| Solgar Pycnogenol 100mg (Genuine, Small Bottle) | Solgar | 100 mg Pycnogenol® / 1 veg capsule | 30 | $47.73 | $1.58 | Labeled Pycnogenol® (Horphag Research trademark); reputable long-standing brand | B00CQ7UIMA | — | 2026-10-10 |

---

## Potassium

**Clinical dose:** Dietary target 3,400 mg/day (men) / 2,600 mg/day (women); OTC supplement pills are capped at 99 mg elemental potassium (~2-3% of the daily target) and are a top-up, not a way to meet the target
**Use cases:** general dietary potassium adequacy
**Form verdict:** No single best form — it depends on purpose: gluconate is common for a mild everyday top-up; anything beyond that should be directed by a doctor. All OTC pills are capped near 99 mg elemental regardless of the big compound-weight number on the label (e.g. "550 mg potassium gluconate" = ~90 mg actual potassium).
**Main page:** https://verifiedsupplementdata.com/potassium/
**Guides:** https://verifiedsupplementdata.com/potassium/ · https://verifiedsupplementdata.com/potassium/citrate-vs-gluconate/ · https://verifiedsupplementdata.com/potassium/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Best Naturals Potassium Chloride 99 mg (400 tablets, 3rd-party tested) | Best Naturals | 99 mg / 1 tablet (99 mg elemental potassium) | 400 | $16.99 | $0.04 | Third-party lab tested (brand claim) | B09XRTL8X6 | best-tested | 2026-10-10 |
| NOW Potassium Citrate 99 mg (180 caps) | NOW Foods | 99 mg / 1 capsule (99 mg elemental potassium) | 180 | $9.17 | $0.05 | NOW GMP / Non-GMO | B001AWWC1W | best-citrate | 2026-10-10 |
| Nature's Bounty Potassium Gluconate 99 mg (100 caplets) | Nature's Bounty | 99 mg / 1 caplet (99 mg elemental potassium) | 100 | $5.55 | $0.05 | None | B0061GLE5W | budget | 2026-10-10 |

---

## Pqq

**Clinical dose:** 20 mg/day (most-used trial dose, 5 of 12 verified trials; also the most common retail dose); trial range 10-21.5 mg/day
**Use cases:** cognition/memory support, cerebral blood flow, general mitochondrial/energy support
**Form verdict:** BioPQQ (Mitsubishi Gas Chemical's branded, trial-traceable ingredient) is preferred over generic PQQ disodium salt, which is chemically the same molecule but carries no supply-chain link to the cited trials.
**Main page:** https://verifiedsupplementdata.com/pqq/best-overall/
**Guides:** https://verifiedsupplementdata.com/pqq/ · https://verifiedsupplementdata.com/pqq/best-overall/ · https://verifiedsupplementdata.com/pqq/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nutricost PQQ 20 mg | Nutricost | 20 mg PQQ (disodium salt, generic) / 1 capsule | 60 | $17.94 | $0.30 | Generic PQQ disodium salt; label states "3rd party tested" (a purity claim, not a named branded-raw-material or trial-traceability disclosure) | B07BH4JG35 | cheapest-per-mg | 2026-10-10 |
| NOW Foods PQQ Energy | NOW Foods | 20 mg PQQ (BioPQQ) + 30mg CoQ10 + 200mg acetyl-L-carnitine + 1000mcg B12 (combo) / 1 capsule | 30 | $16.66 | $0.56 | Combo product: 20mg BioPQQ™ + 30mg CoQ10 + 200mg acetyl-L-carnitine + 1000mcg B12 — NOT a pure PQQ product | B00NY343XA | — | 2026-10-10 |
| Life Extension PQQ Caps 20 mg | Life Extension | 20 mg PQQ (BioPQQ™) / 1 capsule | 30 | $24.00 | $0.79 | BioPQQ™ (Mitsubishi Gas Chemical) branded raw material — the same traceable ingredient used in most of the human PQQ trials cited on this site | B00B35AB4Q | branded-ingredient-value | 2026-10-10 |
| Jarrow Formulas PQQ 20 mg | Jarrow Formulas | 20 mg PQQ (disodium salt, generic) / 1 capsule | 30 | $27.60 | $0.92 | Generic PQQ disodium salt from a reputable manufacturer; the label does not name BioPQQ or another branded raw material | B00C1E7SHQ | — | 2026-10-10 |

---

## Probiotics

**Clinical dose:** no established clinical dose — see page
**Use cases:** digestive health (effects are strain-specific)
**Form verdict:** CFU count is the wrong shopping metric — effects are strain-specific (e.g. L. rhamnosus GG, B. infantis 35624), not CFU-dosed; match the strain to your goal first, then use whatever CFU amount that strain's own trials used
**Main page:** https://verifiedsupplementdata.com/supplements/probiotics/
**Guides:** https://verifiedsupplementdata.com/probiotics/ · https://verifiedsupplementdata.com/probiotics/align-vs-digestive-advantage/ · https://verifiedsupplementdata.com/probiotics/best-for-bloating/ · https://verifiedsupplementdata.com/probiotics/best-for-immune-support/ · https://verifiedsupplementdata.com/probiotics/best-for-travel/ · https://verifiedsupplementdata.com/probiotics/best-for-vaginal-health/ · https://verifiedsupplementdata.com/probiotics/best-overall/ · https://verifiedsupplementdata.com/probiotics/dosage-guide/ · https://verifiedsupplementdata.com/probiotics/for-women/ · https://verifiedsupplementdata.com/probiotics/seed-alternatives/ · https://verifiedsupplementdata.com/probiotics/seed-vs-culturelle/ · https://verifiedsupplementdata.com/probiotics/third-party-tested/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Schiff Digestive Advantage Daily Probiotic (2B CFU BC30, 60ct) | Schiff | 2 billion CFU / 1 capsule | 80 | $28.55 | $0.34 | None | B01ND16K2I | budget | 2026-10-10 |
| Culturelle Daily Probiotic (10B CFU, 30ct) | Culturelle | 10 billion CFU / 1 capsule | 30 | $17.47 | $0.59 | None | B0025ASIRK | best-value | 2026-10-10 |
| Florastor Daily Probiotic (250mg S. boulardii, 30ct) | Florastor | 250 mg / 1 capsule | 30 | $27.59 | $0.92 | None | B01N4E0LVB | budget | 2026-10-10 |
| Align Probiotic (1B CFU B. infantis 35624, 28ct) | Align | 1 billion CFU / 1 capsule | 28 | $26.99 | $0.96 | None | B00I3MTF9E | quality | 2026-10-10 |
| Jarrow Fem-Dophilus (5B CFU GR-1/RC-14, 30ct) | Jarrow Formulas | 5 billion CFU / 1 capsule | 30 | $32.49 | $1.09 | None | B0013OUK3E | best-value | 2026-10-10 |
| Visbiome High Potency Probiotic (112.5B CFU, 60ct) | Visbiome | 112.5 billion CFU / 1 capsule | 60 | $73.95 | $1.23 | None | B01D1Z57PI | — | 2026-10-10 |
| Seed DS-01 Daily Synbiotic (53.6B AFU, 60ct) | Seed | 53.6 billion AFU / 2 capsules | 30 | $59.99 | $2.00 | None | B0CMJR4XGR | quality | 2026-10-10 |

---

## Protein

**Clinical dose:** 0.8 g/kg/day minimum (RDA floor); 1.2-1.6 g/kg/day active; 1.6-2.2 g/kg/day to build muscle (no added benefit above ~1.6); 1.0-1.2+ g/kg/day over 65
**Use cases:** general health/maintenance, active lifestyle, muscle building (resistance training), older adults (muscle preservation)
**Form verdict:** Whey/animal protein has a small edge over plant protein for building muscle per gram (higher leucine, faster digestibility); powder itself is a convenience format with no benefit over the same protein from food.
**Main page:** https://verifiedsupplementdata.com/supplements/protein/
**Guides:** https://verifiedsupplementdata.com/protein/ · https://verifiedsupplementdata.com/protein/ascent-vs-optimum-nutrition/ · https://verifiedsupplementdata.com/protein/best-clear-whey/ · https://verifiedsupplementdata.com/protein/best-overall/ · https://verifiedsupplementdata.com/protein/best-whey-isolate/ · https://verifiedsupplementdata.com/protein/dosage-guide/ · https://verifiedsupplementdata.com/protein/for-women/ · https://verifiedsupplementdata.com/protein/ghost-vs-optimum-nutrition/ · https://verifiedsupplementdata.com/protein/isopure-vs-dymatize-iso100/ · https://verifiedsupplementdata.com/protein/isopure-vs-optimum-nutrition/ · https://verifiedsupplementdata.com/protein/optimum-nutrition-vs-dymatize-iso100/ · https://verifiedsupplementdata.com/protein/premier-protein-vs-fairlife/ · https://verifiedsupplementdata.com/protein/third-party-tested/ · https://verifiedsupplementdata.com/protein/transparent-labs-vs-optimum-nutrition/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Optimum Nutrition Gold Standard 100% Whey (Double Rich Chocolate, 5 lb) | Optimum Nutrition | 24 g protein / 1 scoop (31g) | 74 | $102.81 | $1.39 | Informed Choice (product line) | B000QSNYGI | best-value | 2026-10-10 |
| Garden of Life Raw Organic Protein (Vegan, Unflavored, 20 servings) | Garden of Life | 22 g protein / 1 scoop (33g) | 20 | $35.69 | $1.79 | USDA Organic; Informed Choice (product line) | B0031JK96C | plant-based | 2026-10-10 |
| Transparent Labs 100% Grass-Fed Whey Protein Isolate (French Vanilla, 30 servings) | Transparent Labs | 28 g protein / 1 scoop (34.3 g) | 30 | $64.99 | $2.17 | NSF Certified for Sport | B0CQ3JTR6F | — | 2026-10-10 |
| Premier Protein Shake (30g Protein, Ready-to-Drink) | Premier Protein | 30 g protein / 1 shake (11.5 fl oz) | 12 | $26.49 | $2.21 | None | B008JGIZNQ | convenience | 2026-10-10 |
| Dymatize ISO100 Hydrolyzed Whey Protein Isolate (Gourmet Chocolate, 5 lb) | Dymatize | 25 g protein / 1 scoop (32 g) | 71 | $168.99 | $2.38 | Informed Choice (product line) | B002N6F2UW | quality | 2026-10-10 |

---

## Protein Clear


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Oath Clear Whey Isolate (Kiwi Strawberry, 21 servings) | Oath Nutrition | 20 g protein / 1 scoop (28 g) | 21 | $26.99 | $1.61 | — | B0DZKLQN8S | — | 2026-10-10 |
| Myprotein Clear Whey Isolate (Lemonade, 1.9 lb, 35 servings) | Myprotein | 20 g protein / 1 scoop (25 g) | 35 | $45.99 | $1.64 | Informed Choice + Informed Protein (Clear Whey Protein / Clear Whey Isolate (USA)) | B0G45C3P6N | — | 2026-10-10 |
| Dymatize ISO100 Clear (Pineapple Passion Punch, 25 servings) | Dymatize | 20 g protein / 1 scoop (26 g) | 25 | $42.48 | $2.12 | — | B0GYVLLHCG | — | 2026-10-10 |
| Isopure Clear Whey Isolate (Citrus Lemonade, 1.9 lb, 36 servings) | Isopure | 20 g protein / 1 scoop (25 g) | 36 | $63.99 | $2.22 | — | B081ZV62BP | — | 2026-10-10 |
| WICKED Protein Clear Whey (Blue Raspberry, 18 servings) | WICKED Protein | 23 g protein / 1 scoop (28 g) | 18 | $39.99 | $2.41 | — | B0BMQXKWM2 | — | 2026-10-10 |
| Ascent Clear Protein Isolate 100% Whey (Pineapple Coconut, 20 servings) | Ascent | 20 g protein / 1 scoop (26 g) | 20 | $39.99 | $2.50 | Informed Sport (Clear Protein Isolate 100% Whey) | B0DGZHDBZT | — | 2026-10-10 |
| MusclePharm Pro Series Clear-ISO (Cherry Slush, 20 servings) | MusclePharm | 20 g protein / 1 scoop (26 g) | 20 | $39.99 | $2.50 | Informed Sport + Informed Protein (MP Pro Series Clear-ISO) | B0DKB1SKJH | — | 2026-10-10 |
| Rule 1 Clear Whey Isolate (Strawberry Lemonade, 20 servings) | Rule 1 | 20 g protein / 1 scoop (25.5 g) | 20 | $39.99 | $2.50 | Informed Choice + Informed Protein (Clear Whey Isolate) | B0H1JTTTMX | — | 2026-10-10 |
| Nutricost Clear Whey Isolate (Tropical Punch, 17 servings) | Nutricost | 20 g protein / 1 scoop (26 g) | 17 | $34.95 | $2.57 | — | B0G5T8BKR2 | — | 2026-10-10 |
| GHOST Clear Whey (Mango Colada, about 20 servings) | GHOST | 25 g protein / 1 scoop (35 g) | 20 | $52.97 | $2.65 | — | B0HD9C81XF | — | 2026-10-10 |
| NutraBio Clear Whey Isolate (Watermelon Breeze, 20 servings) | NutraBio | 20 g protein / 1 scoop (24.71 g) | 20 | $42.49 | $2.66 | — | B08P2BMN49 | — | 2026-10-10 |
| SEEQ Clear Whey (Watermelon Wave, 22 servings) | SEEQ | 22 g protein / 1 scoop (28 g) | 22 | $54.00 | $2.79 | — | B0FHRKD92Y | — | 2026-10-10 |
| EVL Clear Whey Isolate (Pink Lemonade, 1.1 lb) | EVL | 20 g protein / 1 scoop | 19 | $42.98 | $2.83 | — | B0D96THXF6 | — | 2026-10-10 |
| Wild Society Clear Whey Isolate + Electrolytes (Strawberry Coconut, 16 servings) | Wild Society | 20 g protein / 1 scoop (28 g) | 16 | $39.99 | $3.13 | Informed Choice + Informed Sport (Clear Whey Isolate + Electrolytes) | B0D9HXB92P | — | 2026-10-10 |
| Legion Clear Whey+ (Fruit Punch, 20 servings) | Legion | 22 g protein / 1 scoop (28 g) | 20 | $59.99 | $3.41 | — | B0G19H1DVJ | — | 2026-10-10 |

---

## Protein Isolate


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Myprotein Impact Whey Isolate (Vanilla Ice Cream, 65 servings) | Myprotein | 25 g protein / 1 scoop (31 g) | 65 | $109.99 | $1.69 | Informed Choice (product line) | B0HHL8HQ4G | — | 2026-10-10 |
| Optimum Nutrition Gold Standard 100% Isolate (Rich Vanilla, 2.91 lb) | Optimum Nutrition | 25 g protein / 1 scoop (30 g) | 44 | $87.29 | $1.98 | Informed Choice (product line) | B07MMQNXTK | — | 2026-10-10 |
| Dymatize ISO100 Hydrolyzed Whey Isolate (Gourmet Vanilla, 3 lb) | Dymatize | 25 g protein / 1 scoop (30 g) | 45 | $88.91 | $1.98 | Informed Choice (product line) | B00HJR6SNK | — | 2026-10-10 |
| Kaged Whey Protein Isolate (Vanilla, 41 servings) | Kaged | 25 g protein / 1 scoop | 41 | $84.99 | $2.07 | Informed Sport | B07DLGPYHN | — | 2026-10-10 |
| Naked Whey Isolate (Vanilla, 24 servings) | Naked Nutrition | 30 g protein / 2 scoops | 24 | $74.99 | $3.12 | — | B0FJHYZZXP | — | 2026-10-10 |

---

## Protein Powder


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Optimum Nutrition Gold Standard 100% Whey (Double Rich Chocolate, 5 lb) | Optimum Nutrition | 24 g protein / 1 scoop (31 g) | 74 | $102.81 | $1.39 | Informed Choice | B000QSNYGI | — | 2026-10-10 |
| Orgain Organic Protein Plant-Based (Vanilla Bean, 2.03 lb) | Orgain | 21 g protein / 1 scoop (46 g) | 20 | $28.97 | $1.45 | — | B00J074W7Q | — | 2026-10-10 |
| Cellucor C4 Whey (28 servings) | Cellucor | 25 g protein / 1 scoop (34.5 g) | 28 | $47.52 | $1.70 | — | B0DJB8724Q | — | 2026-10-10 |
| Premier Protein 100% Whey Powder (Vanilla Milkshake, 1.46 lb) | Premier Protein | 30 g protein / 1 scoop (39 g) | 17 | $29.12 | $1.71 | — | B06ZZ3PJQD | — | 2026-10-10 |
| Dymatize Elite 100% Whey (Cookies & Cream, 2 lb) | Dymatize | 25 g protein / 1 scoop (36 g) | 25 | $44.80 | $1.79 | Informed Choice | B00DRH75YW | — | 2026-10-10 |
| NOW Sports Whey Protein Isolate (1.8 lb) | NOW | 25 g protein / 1 scoop (32 g) | 26 | $47.36 | $1.82 | Informed Sport | B0013P1HVC | — | 2026-10-10 |
| Naked Whey Grass-Fed Whey Concentrate (Unflavored, 5 lb) | Naked | 25 g protein / 1 scoop (30 g) | 76 | $139.99 | $1.84 | Informed Choice | B00NBDMN8U | — | 2026-10-10 |
| Garden of Life Sport Grass-Fed Whey Isolate (20 servings) | Garden of Life | 24 g protein / 1 scoop (33 g) | 20 | $37.89 | $1.89 | NSF Certified for Sport, Informed Choice | B01NAEHLFO | — | 2026-10-10 |
| Ascent Native Fuel Whey (2 lb) | Ascent | 25 g protein / 1 scoop (31 g) | 29 | $54.99 | $1.90 | Informed Sport | B01N7VLTW3 | — | 2026-10-10 |
| Legion Whey+ Whey Isolate (French Vanilla, 30 servings) | Legion | 22 g protein / 1 scoop (27.2 g) | 30 | $59.99 | $2.00 | NSF/ANSI 173 | B00KWL6GNW | — | 2026-10-10 |
| Isopure Zero Carb Whey Isolate (Creamy Vanilla, 3 lb) | Isopure | 25 g protein / 1 scoop (31 g) | 44 | $89.79 | $2.04 | — | B000E95HP0 | — | 2026-10-10 |
| Optimum Nutrition Gold Standard 100% Isolate (3 lb) | Optimum Nutrition | 25 g protein / 1 scoop (31 g) | 44 | $89.99 | $2.05 | Informed Choice | B07G8BM32L | — | 2026-10-10 |
| Kaged Whey Protein Isolate (Chocolate, 3 lb) | Kaged | 25 g protein / 1 scoop (33 g) | 41 | $84.99 | $2.07 | Informed Sport | B07DLGW2RK | — | 2026-10-10 |
| GHOST Whey Protein (2 lb) | GHOST | 25 g protein / 1 scoop (35 g) | 26 | $54.99 | $2.12 | — | B01MQQ4RFA | — | 2026-10-10 |
| Nutricost Whey Protein Isolate (2 lb) | Nutricost | 30 g protein / 1 scoop (37 g) | 25 | $52.95 | $2.12 | — | B01HOPJ3OC | — | 2026-10-10 |
| Transparent Labs Grass-Fed Whey Protein Isolate (30 servings) | Transparent Labs | 28 g protein / 1 scoop (34.3 g) | 30 | $64.99 | $2.17 | NSF Certified for Sport, Informed Choice | B0CQ3JTR6F | — | 2026-10-10 |
| Thorne Whey Protein Isolate (30 servings) | Thorne | 21 g protein / 1 scoop | 30 | $65.00 | $2.17 | NSF Certified for Sport, NSF/ANSI 173 | B0797B27FW | — | 2026-10-10 |
| Isopure Low Carb Whey Isolate (Dutch Chocolate, 4.5 lb) | Isopure | 25 g protein / 1 scoop (34 g) | 62 | $134.99 | $2.18 | Informed Choice | B0752LH3GP | — | 2026-10-10 |
| Garden of Life Sport Organic Plant-Based Protein (19 servings) | Garden of Life | 30 g protein / 1 scoop (45 g) | 19 | $41.99 | $2.21 | Informed Choice | B01N7DTD98 | — | 2026-10-10 |
| Vega Sport Premium Protein (Vanilla, 1.83 lb) | Vega | 30 g protein / 1 scoop (41 g) | 20 | $44.99 | $2.25 | NSF Certified for Sport, Informed Choice, NSF/ANSI 173 | B016D9IGRA | — | 2026-10-10 |
| Dymatize ISO100 Hydrolyzed Whey Isolate (Gourmet Chocolate, 5 lb) | Dymatize | 25 g protein / 1 scoop (32 g) | 71 | $168.99 | $2.38 | Informed Choice | B002N6F2UW | — | 2026-10-10 |
| Momentous Essential Grass-Fed Whey Isolate (25 servings) | Momentous | 20 g protein / 1 scoop (24.7 g) | 25 | $59.99 | $2.40 | NSF/ANSI 173 | B0FN8TQG1P | — | 2026-10-10 |
| Bare Performance Nutrition Whey Protein Isolate (25 servings) | Bare Performance Nutrition | 25 g protein / 1 scoop (31.6 g) | 25 | $64.99 | $2.60 | NSF Certified for Sport | B0GV5YHK19 | — | 2026-10-10 |
| Klean Athlete Klean Isolate (20 servings) | Klean Athlete | 20 g protein / 1 scoop (25.8 g) | 20 | $64.50 | $3.23 | NSF Certified for Sport, NSF/ANSI 173 | B074XDDRRK | — | 2026-10-10 |

---

## Protein Shakes


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Premier Protein Shake (Chocolate, 11.5 fl oz, 12 Pack) | Premier Protein | 30 g protein / 1 shake (11.5 fl oz) | 12 | $25.08 | $2.09 | None | B07MJL8NXR | — | 2026-10-10 |
| Dymatize Performance Protein Shake (Cocoa Pebbles, 11.5 fl oz, 12 Pack) | Dymatize | 30 g protein / 1 shake (11.5 fl oz) | 12 | $33.99 | $2.83 | Informed Choice | B0DHWD5WBM | — | 2026-10-10 |

---

## Protein Tested


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Orgain Organic Vegan Protein Powder (Vanilla Bean, 2.03 lb) | Orgain | 21 g protein / 1 scoop (46 g) | 20 | $28.97 | $1.45 | None found in NSF or Informed Sport registries | B00J074W7Q | — | 2026-10-10 |
| Cellucor C4 Whey Protein (Vanilla Bean, 28 servings) | Cellucor | 25 g protein / 1 scoop | 28 | $47.52 | $1.70 | None found in NSF or Informed Sport registries | B0DJB8724Q | — | 2026-10-10 |
| Premier Protein 100% Whey Protein Powder (Vanilla Milkshake, 17 servings) | Premier Protein | 30 g protein / 1 scoop (39 g) | 17 | $29.12 | $1.71 | None found in NSF or Informed Sport registries | B06ZZ3PJQD | — | 2026-10-10 |
| Muscle Milk Genuine Protein Powder (Chocolate, 1.93 lb) | Muscle Milk | 32 g protein / 2 scoops (70 g) | 13 | $23.18 | $1.78 | NSF Certified for Sport | B006N74O2Y | — | 2026-10-10 |
| NOW Sports Whey Protein Isolate (Creamy Vanilla, 1.8 lb) | NOW Sports | 25 g protein / 1 scoop (32 g) | 26 | $47.36 | $1.82 | Informed Sport | B0013P1HVC | — | 2026-10-10 |
| Garden of Life Sport Grass Fed Whey Protein (Vanilla, 20 servings) | Garden of Life | 24 g protein / 1 scoop (33 g) | 20 | $37.89 | $1.89 | NSF Certified for Sport | B01NAEHLFO | — | 2026-10-10 |
| Ascent 100% Whey Protein Powder (Vanilla Bean, 2 lb) | Ascent | 25 g protein / 1 scoop (31 g) | 29 | $54.99 | $1.90 | Informed Sport | B01N7VLTW3 | — | 2026-10-10 |
| Legion Whey+ Grass-Fed Whey Isolate (French Vanilla, 30 servings) | Legion | 22 g protein / 1 scoop (26 g) | 30 | $59.99 | $2.00 | NSF/ANSI 173 | B00KWL6GNW | — | 2026-10-10 |
| Isopure (Nature's Best) Zero Carb Whey Isolate (Creamy Vanilla, 3 lb) | Isopure (Nature's Best) | 25 g protein / 1 scoop (31 g) | 44 | $89.79 | $2.04 | None found in NSF or Informed Sport registries | B000E95HP0 | — | 2026-10-10 |
| Optimum Nutrition Gold Standard 100% Isolate (Chocolate Bliss, ~3 lb) | Optimum Nutrition | 25 g protein / 1 scoop (31 g) | 44 | $89.99 | $2.05 | None found in NSF or Informed Sport registries | B07G8BM32L | — | 2026-10-10 |
| Naked Whey Grass-Fed Whey Protein Concentrate (Unflavored, 2 lb) | Naked Nutrition | 25 g protein / 1 scoop (30 g) | 30 | $62.99 | $2.10 | None found in NSF or Informed Sport registries | B00XIKPUK4 | — | 2026-10-10 |
| Ghost Whey Protein Powder (Milk Chocolate, 2 lb) | Ghost | 25 g protein / 1 scoop (35 g) | 26 | $54.99 | $2.12 | None found in NSF or Informed Sport registries | B01MQQ4RFA | — | 2026-10-10 |
| Nutricost Whey Protein Isolate (Vanilla, 2 lb) | Nutricost | 30 g protein / 1 scoop (37 g) | 25 | $52.95 | $2.12 | None found in NSF or Informed Sport registries | B01HOPJ3OC | — | 2026-10-10 |
| Thorne Whey Protein Isolate (Vanilla, 30 servings) | Thorne | 21 g protein / 1 scoop (27.9 g) | 30 | $65.00 | $2.17 | NSF Certified for Sport | B0797B27FW | — | 2026-10-10 |
| Truvani Organic Plant-Based Protein, Chocolate (18 servings) | Truvani | 20 g protein / 1 scoop | 18 | $39.99 | $2.22 | USDA Organic | B0DDQHJ2NG | plant-tested-low | 2026-10-10 |
| Vega Performance Protein + Recovery (Vanilla, 20 servings) | Vega | 30 g protein / 1 scoop (41 g) | 20 | $44.99 | $2.25 | NSF Certified for Sport | B016D9IGRA | — | 2026-10-10 |
| Momentous Grass-Fed Whey Protein Isolate (Strawberry, 25 servings) | Momentous | 20 g protein / 1 scoop (24.7 g) | 25 | $59.99 | $2.40 | None found for the pack sold (NSF lists the 12-serving pack) | B0FN8TQG1P | — | 2026-10-10 |
| Momentous Grass-Fed Whey Protein Isolate (unflavored) | Momentous | 20 g protein / 1 scoop | 24 | $59.99 | $2.50 | NSF Certified for Sport (brand-stated; not confirmed in the public registry) | B0F144K892 | lowest-lead-whey | 2026-10-10 |
| Bare Performance Nutrition Whey Protein Isolate (Vanilla, 25 servings) | Bare Performance Nutrition (BPN) | 25 g protein / 1 scoop (31.6 g) | 25 | $64.99 | $2.60 | NSF Certified for Sport | B0GV5YHK19 | — | 2026-10-10 |
| Klean Isolate (Natural Vanilla, 20 servings) | Klean Athlete | 20 g protein / 1 scoop (25.8 g) | 20 | $64.50 | $3.23 | NSF Certified for Sport | B074XDDRRK | — | 2026-10-10 |

---

## Protein Vs


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Ascent 100% Whey Protein Powder (Vanilla Bean, 4 lb) | Ascent | 25 g protein / 1 scoop (31 g) | 58 | $62.11 | $1.07 | Informed Sport | B01MYBOP9L | — | 2026-10-10 |
| Optimum Nutrition Gold Standard 100% Whey (Double Rich Chocolate, 2 lb) | Optimum Nutrition | 24 g protein / 1 scoop (31 g) | 29 | $54.25 | $1.95 | Informed Choice (product line) | B002DYIZH6 | — | 2026-10-10 |

---

## Psyllium

**Clinical dose:** 5-10 g/day for regularity; label serving sizes vary by product
**Use cases:** fiber intake and regularity
**Form verdict:** Plain psyllium husk powder is the best value; format (husk powder vs capsules vs Metamucil) doesn't change the underlying fiber, but every dose must be taken with a full glass of water — this is an FDA-mandated safety warning, not boilerplate, because psyllium can swell in the throat if taken dry.
**Main page:** https://verifiedsupplementdata.com/psyllium/best-overall/
**Guides:** https://verifiedsupplementdata.com/psyllium/ · https://verifiedsupplementdata.com/psyllium/best-overall/ · https://verifiedsupplementdata.com/psyllium/dosage-guide/ · https://verifiedsupplementdata.com/psyllium/husk-vs-powder-vs-capsules/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| NOW Psyllium Husk Caps, 500mg (500 Veg Capsules) | NOW Foods | 500 mg / 1 capsule (500mg) | 500 | $23.09 | $0.05 | None listed | B0013OW2KS | — | 2026-10-10 |
| Metamucil 4-in-1 Psyllium, Sugar-Free (72 servings) | Metamucil | 3.4 g / 1 rounded tsp (~5.8 g) | 72 | $17.97 | $0.25 | None listed | B000052Y5Q | — | 2026-10-10 |
| Metamucil Psyllium Husk Powder, Unflavored Original, with Sugar (114 servings) | Metamucil | 3.4 g / 1 rounded tsp (~5.8 g) | 114 | $28.99 | $0.26 | None listed | B0013I4WJS | — | 2026-10-10 |
| Organic India Whole Psyllium Husk Powder (12 oz) | Organic India | 5 g / ~1 tsp (est., see note) | 68 | $18.99 | $0.28 | USDA Organic (per brand listing) | B0016AXN7A | — | 2026-10-10 |
| Konsyl Daily Psyllium Fiber Powder (19 oz) | Konsyl | 5 g / 1 tsp (6 g) | 90 | $25.99 | $0.29 | Single-ingredient psyllium husk | B0D1DB2D6V | quality | 2026-10-10 |
| Yerba Prima Psyllium Whole Husk, Untreated (12 oz) | Yerba Prima | 5 g / ~1 tsp (est., see note) | 68 | $19.99 | $0.29 | None listed | B00013YYKS | — | 2026-10-10 |
| NOW Psyllium Husk Powder, Organic (12 oz) | NOW Foods | 7 g / 1 tbsp (9 g) | 38 | $14.69 | $0.39 | Non-GMO Project Verified, USDA Organic | B002N0OFEM | best-value | 2026-10-10 |

---

## Quercetin

**Clinical dose:** Plain: 500-1000 mg/day; Phytosome (Quercefit): 200 mg/day
**Use cases:** general antioxidant support
**Form verdict:** Plain and phytosome quercetin are NOT dose-equivalent — phytosome reaches up to 20x higher plasma levels at the same labeled mg (Riva 2019) — so never substitute one form for the other milligram-for-milligram.
**Main page:** https://verifiedsupplementdata.com/quercetin/best-overall/
**Guides:** https://verifiedsupplementdata.com/quercetin/ · https://verifiedsupplementdata.com/quercetin/best-overall/ · https://verifiedsupplementdata.com/quercetin/does-quercetin-work/ · https://verifiedsupplementdata.com/quercetin/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Doctor's Best Quercetin Bromelain | Doctor's Best | 500 mg quercetin / 1 capsule | 180 | $28.99 | $0.17 | None claimed | B000NRYTPM | cheapest-plain-bromelain | 2026-10-10 |
| Jarrow Formulas Quercetin 500 mg | Jarrow Formulas | 500 mg quercetin / 1 capsule | 200 | $43.94 | $0.22 | None claimed | B0013OULOC | — | 2026-10-10 |
| Nutricost Quercetin 1000 mg | Nutricost | 1000 mg quercetin / 2 capsules | 60 | $19.95 | $0.33 | None claimed | B09HL2RWK3 | cheapest-plain-bp-dose | 2026-10-10 |
| NOW Foods Quercetin with Bromelain | NOW Foods | 800 mg quercetin / 2 veg capsules | 60 | $23.34 | $0.40 | None claimed | B0013OSQ5I | budget-plain-bromelain | 2026-10-10 |
| Quercetin Complete (Quercefit Phytosome + Bromelain, Zinc, Vitamin C) | Quercetin Complete | 500 mg quercetin (phytosome) / 1 capsule | 60 | $26.99 | $0.45 | None claimed | B09ZBGBFYB | — | 2026-10-10 |
| Thorne Quercetin Phytosome | Thorne | 250 mg quercetin (phytosome) / 1 capsule | 60 | $46.00 | $0.77 | None independently confirmed (Thorne brand-level manufacturing standards) | B0797DQTVZ | phytosome-name-brand | 2026-10-10 |

---

## Rhodiola

**Clinical dose:** 200-400 mg/day for stress and fatigue; over 600 mg/day for endurance (extract standardized to ~3% rosavins/1% salidroside)
**Use cases:** stress/mental fatigue, endurance/exercise performance
**Form verdict:** Rosavin content — not extract weight — is what matters; rosavins are the Rhodiola rosea species fingerprint, and 20-40% of products are mislabeled or the wrong species (often substituting cheaper R. crenulata, which shares salidroside but not rosavins).
**Main page:** https://verifiedsupplementdata.com/rhodiola/best-overall/
**Guides:** https://verifiedsupplementdata.com/rhodiola/ · https://verifiedsupplementdata.com/rhodiola/best-overall/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Double Wood Rhodiola Rosea 500 mg | Double Wood | 500 mg extract / 1 capsule | 120 | $17.95 | $0.16 | ISO/IEC 17025 COA | B07FV1G432 | — | 2026-10-10 |
| Bronson Rhodiola Rosea 1000 mg | Bronson | 1000 mg extract / 1 capsule | 60 | $9.99 | $0.17 | GMP; no potency COA | B0BYK8WYT4 | — | 2026-10-10 |
| Life Extension Rhodiola Extract 250 mg | Life Extension | 250 mg extract / 1 capsule | 60 | $13.50 | $0.23 | GMP; no third-party COA | B000M6Y70G | pick-budget | 2026-10-10 |
| Zazzee Organic Rhodiola 10:1 Extract | Zazzee | 300 mg extract / 1 capsule | 120 | $29.97 | $0.24 | "ISO lab tested"; no potency COA | B0CDV4DWH5 | — | 2026-10-10 |
| Pure Encapsulations Rhodiola Rosea 100 mg | Pure Encapsulations | 100 mg extract / 1 capsule | 90 | $23.50 | $0.26 | cGMP; no third-party COA | B0016RRPWC | — | 2026-10-10 |
| Momentous Rhodiola Rosea 100 mg | Momentous | 100 mg extract / 1 capsule | 60 | $19.99 | $0.33 | NSF Certified for Sport + COA | B0BX4RJC4P | pick-quality | 2026-10-10 |
| Thorne Rhodiola 100 mg | Thorne | 100 mg extract / 1 capsule | 60 | $24.00 | $0.40 | cGMP; no third-party COA | B0009DTKJU | — | 2026-10-10 |
| Gaia Herbs Rhodiola Rosea | Gaia Herbs | 120 mg extract / 1 capsule | 120 | $49.49 | $0.41 | Purity-tested; no COA | B00HGA994K | — | 2026-10-10 |
| NOW Rhodiola 500 mg | NOW Foods | 500 mg extract / 1 capsule | 60 | $24.99 | $0.42 | GMP; no third-party COA | B0768PCCDX | pick-value | 2026-10-10 |
| Toniiq Triple-Strength Rhodiola 600 mg | Toniiq | 600 mg extract / 2 capsules | 60 | $24.97 | $0.42 | Publishes a COA | B0751HBW2F | — | 2026-10-10 |
| Nootropics Depot Rhodiola Rosea 500 mg (3% Rosavins) | Nootropics Depot | 500 mg extract / 1 capsule | 60 | $30.99 | $0.52 | Third-party tested, published per-lot COA | B0775B46M3 | pick-tested | 2026-10-10 |

---

## Saffron

**Clinical dose:** 30 mg/day of a standardized extract (usually 15 mg twice daily), 6-8 weeks; branded affron extract uses 28 mg/day
**Use cases:** general mood and wellness support (evidence limited)
**Form verdict:** Standardization (crocin/safranal content), not the milligram number, is what to buy on — saffron is heavily adulterated (~20-30%), so a disclosed 30mg standardized extract is more trustworthy than an undisclosed 88mg 'saffron extract.'
**Main page:** https://verifiedsupplementdata.com/saffron/best-overall/
**Guides:** https://verifiedsupplementdata.com/saffron/ · https://verifiedsupplementdata.com/saffron/best-overall/ · https://verifiedsupplementdata.com/saffron/dosage-guide/ · https://verifiedsupplementdata.com/saffron/gummies/ · https://verifiedsupplementdata.com/saffron/is-it-real/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nutricost Saffron Extract 88.5 mg (0.3% safranal) | Nutricost | 88 mg extract / 1 capsule | 240 | $19.95 | $0.08 | None stated | B09DTN7P4W | — | 2026-10-10 |
| Double Wood Saffron Extract 88.5 mg (0.3% safranal) | Double Wood | 88 mg extract / 1 capsule | 210 | $19.95 | $0.10 | Third-party tested (COA) | B085RB2PR9 | — | 2026-10-10 |
| Mother Nutrient Saffron Extract 88.5 mg | Mother Nutrient | 88 mg extract / 1 capsule | 240 | $33.89 | $0.14 | None stated | B07Q23DCZC | — | 2026-10-10 |
| NutriRise Saffron Extract 88.5 mg | NutriRise | 88 mg extract / 1 capsule | 120 | $19.95 | $0.17 | None stated (cGMP facility) | B0FKD8P8LW | — | 2026-10-10 |
| Life Extension Optimized Saffron with Satiereal | Life Extension | 88 mg extract / 1 capsule | 60 | $24.94 | $0.42 | None stated | B003UGS4T0 | — | 2026-10-10 |
| Nootropics Depot Saffron Extract 30 mg (7.5% crocins) | Nootropics Depot | 30 mg extract / 1 capsule | 60 | $29.99 | $0.50 | Third-party tested, per-batch COA (HPLC) | B0B69MGMFW | pick-tested | 2026-10-10 |
| Sports Research Saffron with Affron 30 mg | Sports Research | 30 mg extract / 1 softgel | 60 | $29.95 | $0.50 | None stated on listing | B0FY497SJJ | pick-best-value | 2026-10-10 |
| Solaray Saffron Extract with Affron 30 mg | Solaray | 30 mg extract / 1 vegcap | 30 | $19.40 | $0.64 | Lab verified, NSF-GMP facility | B0DLYDL7HX | — | 2026-10-10 |
| Natural Factors Affron Saffron Extract 28 mg | Natural Factors | 28 mg extract / 1 capsule | 30 | $20.97 | $0.70 | None stated | B09JHVX5JK | — | 2026-10-10 |

---

## Saffron Gummies


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Syfra Labs Saffron 30 mg & L-Theanine 200 mg Gummies (90 gummies) | Syfra Labs | 30 mg extract / 2 gummies | 45 | $29.99 | $0.67 | None stated | B0GW6XJC5H | — | 2026-10-10 |
| Sakoon Saffron Gummies 30 mg with Rhodiola & L-Theanine (60 gummies) | Sakoon Nutrition | 30 mg extract / 2 gummies | 30 | $24.00 | $0.80 | None stated (third-party tested claim) | B0GCNL8CTM | budget | 2026-10-10 |
| NUSAVA 4-in-1 Saffron Gummies 30 mg (30 gummies) | NUSAVA | 30 mg extract / 1 gummy | 30 | $25.95 | $0.86 | None stated | B0FTGR7SNG | — | 2026-10-10 |

---

## Same

**Clinical dose:** 400-1,600 mg/day in studies (usually 800-1,600 mg, split)
**Use cases:** mood and joint comfort (evidence mixed); interacts with antidepressants
**Form verdict:** Must be enteric-coated (SAMe is chemically unstable and degrades otherwise) and taken on an empty stomach in the morning; carries two serious safety flags — mania risk in bipolar disorder and serotonin-syndrome risk when combined with SSRIs/SNRIs/MAOIs.
**Main page:** https://verifiedsupplementdata.com/b12/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Life Extension SAMe 400mg | Life Extension | 400 mg / 1 tablet | 60 | $37.49 | $0.62 | None | B07D2KF4TL | quality | 2026-10-10 |
| NOW Supplements SAMe 400mg | NOW Foods | 400 mg / 1 tablet | 60 | $40.21 | $0.67 | None | B000OSSQFY | — | 2026-10-10 |
| Doctor's Best SAMe 400mg | Doctor's Best | 400 mg / 1 tablet | 60 | $48.99 | $0.82 | None | B004YLAXOE | best-value | 2026-10-10 |

---

## Saw Palmetto

**Clinical dose:** 320 mg/day of a standardized lipidosterolic extract (~85-95% fatty acids/sterols), typically one 320mg softgel or two 160mg softgels — the dose studied, not a dose shown to work
**Use cases:** traditional herbal use; large placebo-controlled trials found no benefit for urinary symptoms at the studied dose
**Form verdict:** The strongest placebo-controlled trials (STEP, CAMUS) and the Cochrane review found NO benefit over placebo for urinary symptoms even at the full 320mg standardized dose, and no benefit even at up to 3x that dose — the honest verdict is null, regardless of which product or standardization tier you buy.
**Main page:** https://verifiedsupplementdata.com/saw-palmetto/best-overall/
**Guides:** https://verifiedsupplementdata.com/saw-palmetto/ · https://verifiedsupplementdata.com/saw-palmetto/best-overall/ · https://verifiedsupplementdata.com/saw-palmetto/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Horbaach Saw Palmetto Extract 900 mg (200 Capsules) | Horbaach | 900 mg / 1 capsule | 200 | $9.99 | $0.05 | None | B0CYR53CSZ | — | 2026-10-10 |
| Solaray Saw Palmetto Berries 580 mg (360 VegCaps) | Solaray | 580 mg / 1 vegcap | 360 | $33.90 | $0.09 | None | B00B8M1ZKI | — | 2026-10-10 |
| Nature's Bounty Saw Palmetto 450 mg (100 Capsules) | Nature's Bounty | 450 mg / 1 capsule | 100 | $10.26 | $0.09 | None | B001KYU6EK | — | 2026-10-10 |
| Puritan's Pride Flow Guard Saw Palmetto 450 mg (200 Capsules) | Puritan's Pride | 450 mg / 1 capsule | 200 | $18.89 | $0.10 | None | B008AL59IY | — | 2026-10-10 |
| NOW Saw Palmetto 160 mg (240 Softgels) | NOW Foods | 160 mg extract / 1 softgel | 240 | $27.55 | $0.12 | None | B0013OQP74 | — | 2026-10-10 |
| Nature's Way Saw Palmetto Berries 585 mg (180 Capsules) | Nature's Way | 585 mg / 1 capsule | 180 | $19.98 | $0.12 | None | B00020HQQ4 | — | 2026-10-10 |
| Nutricost Organic Saw Palmetto 1000 mg (120 Capsules) | Nutricost | 1000 mg / 2 capsules | 60 | $13.95 | $0.23 | None | B09BG3B8F3 | — | 2026-10-10 |
| Nature's Truth Saw Palmetto 2400 mg Equivalent (120 Capsules) | Nature's Truth | 2400 mg / 2 capsules | 60 | $14.16 | $0.23 | None | B00XHKAL18 | — | 2026-10-10 |
| Nature's Way Saw Palmetto Standardized Extract 160 mg (120 Softgels) | Nature's Way | 160 mg extract / 1 softgel | 120 | $29.15 | $0.25 | None | B0013OX6I0 | — | 2026-10-10 |
| NOW Saw Palmetto Extract 320 mg with Pumpkin Seed (90 Softgels) | NOW Foods | 320 mg extract / 1 softgel/day | 90 | $23.99 | $0.27 | None | B0013OXII8 | — | 2026-10-10 |
| Solaray Saw Palmetto Extract 160 mg (120 VegCaps) | Solaray | 160 mg extract / 1 vegcap | 120 | $39.08 | $0.33 | None | B00020HZKQ | — | 2026-10-10 |
| Swanson Saw Palmetto 320 mg (60 Softgels) | Swanson | 320 mg extract / 1 softgel/day | 60 | $21.39 | $0.36 | None | B002BB43GI | — | 2026-10-10 |
| Life Extension PalmettoGuard Saw Palmetto + Beta-Sitosterol (30 Softgels) | Life Extension | 320 mg extract / 1 softgel/day | 30 | $12.00 | $0.40 | None | B000LVI5FK | — | 2026-10-10 |
| Havasu Saw Palmetto 3X with Nettle & Pumpkin (120 Capsules) | Havasu | 500 mg blend / 2 capsules | 60 | $27.99 | $0.47 | None | B09N44X5GZ | — | 2026-10-10 |

---

## Sea Moss

**Clinical dose:** no established clinical dose — see page
**Use cases:** general wellness / mineral supplementation (no validated therapeutic dose)
**Form verdict:** no honest fixed dose exists — iodine, the safety-relevant variable, varies more than 50-fold between products and is almost never labeled; start with less than a teaspoon of gel and only use a product that discloses iodine per serving
**Main page:** https://verifiedsupplementdata.com/sea-moss/best-overall/
**Guides:** https://verifiedsupplementdata.com/sea-moss/ · https://verifiedsupplementdata.com/sea-moss/best-overall/ · https://verifiedsupplementdata.com/sea-moss/dosage-guide/ · https://verifiedsupplementdata.com/sea-moss/gummies/ · https://verifiedsupplementdata.com/sea-moss/is-it-safe/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Elderwise Raw Wildcrafted Sea Moss (makes ~24 oz gel) | Elderwise | 0 raw / DIY gel (soak, blend, refrigerate) | 48 | $14.99 | $0.15 | Wildcrafted golden (brand claim) | B08HVX1QQ6 | best-value-diy | 2026-10-10 |
| Irish Sea Moss Capsules (1,200 mg, 180 ct) | Nature's | 1200 mg sea moss / 2 capsules (1,200 mg sea moss) | 90 | $19.95 | $0.22 | Single-ingredient (no undisclosed blend) | B08QQ5FP1X | best-capsule | 2026-10-10 |
| TrueSeaMoss Wildcrafted Sea Moss Gel | TrueSeaMoss | 0 gel / 1-2 tbsp gel | 24 | $31.99 | $0.40 | Wildcrafted (brand claim) | B0GG5BBXRY | best-gel | 2026-10-10 |

---

## Sea Moss Gummies


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Vitamatic Sea Moss Gummies with Bladderwrack & Burdock (60 gummies) | Vitamatic | 87.5 mg extract / 2 gummies | 30 | $9.99 | $0.33 | None stated | B09PK372HT | budget | 2026-10-10 |
| Secret Element Sea Moss Gummies 65 mg (60 gummies) | Secret Element | 65 mg sea moss / 2 gummies | 30 | $9.97 | $0.33 | None stated | B0GLJ85M2J | — | 2026-10-10 |
| MaryRuth's Sea Moss Gummies, Sugar Free (60 gummies) | MaryRuth's | 50 mg sea moss / 2 gummies | 30 | $19.95 | $0.66 | None stated | B0BBPRC736 | sugar-free | 2026-10-10 |
| TrueSeaMoss Irish Sea Moss Gummies with Burdock & Bladderwrack (60 gummies) | TrueSeaMoss | 60 mg extract / 2 gummies | 30 | $24.14 | $0.80 | None stated | B094623RQQ | — | 2026-10-10 |
| Bucklebury Wild Crafted Irish Sea Moss Gummies (60 gummies) | Bucklebury | 87.5 mg extract / 2 gummies | 30 | $27.99 | $0.93 | None stated | B09W9W6Q38 | — | 2026-10-10 |

---

## Selenium

**Clinical dose:** 100-200 mcg/day if supplementing (RDA 55 mcg/day for adults; tolerable upper limit 400 mcg/day)
**Use cases:** general selenium intake; thyroid support under medical guidance
**Form verdict:** selenomethionine is the well-absorbed, most-studied supplemental form, but most people should get selenium from food (e.g. Brazil nuts) rather than a standalone pill
**Main page:** https://verifiedsupplementdata.com/supplements/selenium/
**Guides:** https://verifiedsupplementdata.com/selenium/ · https://verifiedsupplementdata.com/selenium/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| NOW Supplements Selenium 200mcg | NOW Foods | 200 mcg / 1 capsule | 180 | $12.24 | $0.07 | None | B000MGSG8A | best-value | 2026-10-10 |
| Life Extension Super Selenium Complex | Life Extension | 200 mcg / 1 capsule | 100 | $10.50 | $0.11 | None | B009EA6FZG | — | 2026-10-10 |

---

## Shilajit

**Clinical dose:** 250-500 mg/day of purified shilajit (the fatigue trial's benefit appeared only at 500 mg/day)
**Use cases:** exercise fatigue, strength recovery
**Form verdict:** standardized capsules (e.g. PrimaVie) are the only form giving a truly known milligram dose; resin is scooped by eye and imprecise, and a larger dose of an untested product means a larger dose of any heavy metals it contains
**Main page:** https://verifiedsupplementdata.com/shilajit/best-overall/
**Guides:** https://verifiedsupplementdata.com/shilajit/ · https://verifiedsupplementdata.com/shilajit/best-overall/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Pure Himalayan Shilajit Resin (200 mg/serving) | Pure Himalayan | 200 mg / ~rice-grain (200 mg resin) | 75 | $37.99 | $0.51 | 3rd-party tested (brand claim) | B088VRQK2Z | popular-resin | 2026-10-10 |
| Nootropics Depot PrimaVie Shilajit (250 mg, 90 caps) | Nootropics Depot | 250 mg / 2 capsules (500 mg PrimaVie — the studied dose) | 90 | $32.99 | $0.73 | PrimaVie standardized extract, heavy-metal tested | B078K1F7ZK | best-verified | 2026-10-10 |
| Peak Performance PrimaVie Purified Shilajit | Peak Performance | 500 mg / 2 capsules (500 mg PrimaVie) | 30 | $21.95 | $0.73 | PrimaVie standardized extract | B0B192RMD8 | value-verified | 2026-10-10 |

---

## Shilajit Gummies


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Santegra Organic Shilajit Gummies 1000 mg (120 gummies) | Santegra | 1000 mg extract / 2 gummies | 60 | $26.99 | $0.45 | None stated | B0GYRGVBLV | budget-per-dose | 2026-10-10 |
| Toniiq Shilajit Gummies, 20:1 Concentrate, 50% Fulvic Acid (60 gummies) | Toniiq | 300 mg extract / 2 gummies | 30 | $16.86 | $0.56 | None stated (lab reports published) | B0F93L5QLG | best-disclosure | 2026-10-10 |
| Pure Alt Himalayan Shilajit Gummies, 300 mg (60 gummies) | Pure Alt | 300 mg extract / 2 gummies | 30 | $23.99 | $0.80 | None stated (third-party COA claimed) | B0G2P7VQ8S | — | 2026-10-10 |
| Organifi Shilajit Gummies with PrimaVie (60 gummies) | Organifi | 250 mg extract / 2 gummies | 30 | $69.95 | $2.33 | None stated (glyphosate-residue-free claim) | B0CMBJ32PZ | primavie | 2026-10-10 |

---

## Spermidine

**Clinical dose:** 0.9-1.2 mg/day is the only human trial range with a measured cognitive outcome; retail products commonly sell 1-15 mg, frequently above that range with no efficacy evidence at the higher doses
**Use cases:** memory / cognitive aging support (evidence mixed, not confirmed)
**Form verdict:** check whether the label discloses ACTUAL spermidine mg — spermidine is well under 1% of wheat germ by weight, so a bare "wheat germ extract mg" figure tells you nothing about the real dose
**Main page:** https://verifiedsupplementdata.com/supplements/
**Guides:** https://verifiedsupplementdata.com/spermidine/best-overall/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Double Wood Spermidine 10mg (99% Spermidine 3HCL) | Double Wood | 10 mg spermidine / 2 capsules | 60 | $39.95 | $0.67 | Third-party HPLC-tested per batch | B09NP4MPQB | cleanest-label-gluten-free | 2026-10-10 |
| Nutricost Spermidine Wheat Germ | Nutricost | 1500 mg wheat germ extract / 3 capsules | 40 | $44.95 | $1.12 | GMP-compliant, ISO-accredited lab testing (identity/purity — not an independently verified spermidine-mg assay) | B0BJ347ZRK | — | 2026-10-10 |
| HUMANX Spermidine+ (Wheat Germ Extract + Zinc/Thiamine) | HUMANX | 998 mg wheat germ extract blend / 2 capsules | 30 | $49.95 | $1.67 | Third-party tested (purity claim only — not an independently verified spermidine-mg assay) | B09C2TSQP7 | — | 2026-10-10 |
| Longevity Labs spermidineLIFE (CelVio Wheat Germ Extract) | Longevity Labs | 800 mg wheat germ extract / 2 capsules | 30 | $69.00 | $2.30 | CelVio-branded wheat germ extract (EFSA novel-food approved); discloses both extract mg and actual spermidine mg | B08KSGPNWL | transparency-standard-trial-adjacent | 2026-10-01 |

---

## Spirulina

**Clinical dose:** 1-8 g/day is the range used across clinical trials; there is no standardized "active %" because spirulina is a whole biomass, not an extract
**Use cases:** general nutrition and antioxidant support
**Form verdict:** every spirulina product is the same cultivated organism, so form/potency doesn't differ between brands — what matters is a verified cultivation source and named contaminant testing, not powder vs. tablet
**Main page:** https://verifiedsupplementdata.com/spirulina/best-overall/
**Guides:** https://verifiedsupplementdata.com/spirulina/ · https://verifiedsupplementdata.com/spirulina/best-overall/ · https://verifiedsupplementdata.com/spirulina/dosage-guide/ · https://verifiedsupplementdata.com/spirulina/is-your-spirulina-clean/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Zazzee USDA Organic Spirulina Powder (1 kg) | Zazzee | 3300 mg spirulina / ~3.3 g | 303 | $39.97 | $0.13 | 3rd-party tested: microcystin + heavy metals + BMAA + nitrates + pesticides | B01MT2VPRC | best-value | 2026-10-10 |
| Micro Ingredients Organic Spirulina Powder (1 lb) | Micro Ingredients | 3000 mg spirulina / 3 g | 151 | $21.95 | $0.14 | cGMP; 'third-party lab tested' (no public COA / named lab) | B01DPW5FWW | — | 2026-10-10 |
| NOW Certified Organic Spirulina Powder (1 lb) | NOW Foods | 2500 mg spirulina / ~2.5 g (1 tsp) | 180 | $30.15 | $0.17 | Non-GMO, GMP; internal ID testing | B000MGR1U4 | — | 2026-10-10 |
| KOS Organic Spirulina Powder (13.5 oz) | KOS | 3500 mg spirulina / ~3.5 g | 109 | $20.39 | $0.19 | 'Lab tested by a verified third party' (no named lab) | B07JFJ3XKR | — | 2026-10-10 |
| BulkSupplements Organic Spirulina Powder (250 g) | BulkSupplements | 3000 mg spirulina / 3 g | 83 | $20.97 | $0.25 | Third-party tested; COA on request | B00ENSGXZG | — | 2026-10-10 |
| Nutrex Hawaii Pure Hawaiian Spirulina Powder (9.53 oz) | Nutrex Hawaii | 3000 mg spirulina / 3 g | 90 | $27.99 | $0.31 | GMP; Hawaiian-grown; cited passing heavy-metal screens | B0FSTJMJFT | — | 2026-10-10 |
| NOW Certified Organic Spirulina 1000 mg Tablets (120 ct) | NOW Foods | 3000 mg spirulina / 3 tablets (3 g) | 40 | $13.46 | $0.34 | Non-GMO, GMP | B00HCBN674 | — | 2026-10-10 |
| Triquetra Organic Spirulina Powder, made with Parry (8 oz) | Triquetra Health | 3000 mg spirulina / 3 g | 75 | $26.95 | $0.36 | USP-verified ingredient; Prop 65 approved; lab docs on request | B00XV4SNJ2 | — | 2026-10-10 |
| Nutrex Hawaii Pure Hawaiian Spirulina 500 mg Tablets (400 ct) | Nutrex Hawaii | 3000 mg spirulina / 6 tablets (3 g) | 66 | $32.99 | $0.50 | GMP; Hawaiian-grown | B0039ITKSI | — | 2026-10-10 |

---

## Taurine

**Clinical dose:** 500-2,000 mg/day general well-tolerated range; 1-6 g pre-exercise
**Use cases:** exercise/endurance performance; general use
**Form verdict:** taurine is one identical molecule across all brands — only price and form (powder vs. capsule) vary; powder is far cheaper per gram than capsules
**Main page:** https://verifiedsupplementdata.com/taurine/best-overall/
**Guides:** https://verifiedsupplementdata.com/taurine/ · https://verifiedsupplementdata.com/taurine/best-overall/ · https://verifiedsupplementdata.com/taurine/dosage-guide/ · https://verifiedsupplementdata.com/taurine/in-energy-drinks/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Micro Ingredients Taurine Powder (1 kg) | Micro Ingredients | 2000 mg taurine / 1 scoop (2 g) | 500 | $21.99 | $0.04 | Third-party lab tested | B0C88H675D | best-value | 2026-10-10 |
| Nutricost Taurine Powder (1 kg) | Nutricost | 2000 mg taurine / 1 scoop (2 g) | 500 | $24.95 | $0.05 | 3rd-party tested, GMP | B01MQGUFJP | — | 2026-10-10 |
| BulkSupplements Taurine Powder (1 kg) | BulkSupplements | 2000 mg taurine / 2 g (~2/3 tsp) | 500 | $29.97 | $0.06 | Third-party tested (COA), cGMP | B00ENSLW7A | — | 2026-10-10 |
| NOW Foods Taurine Pure Powder (8 oz) | NOW Foods | 1000 mg taurine / 1/4 tsp (~1 g) | 227 | $11.01 | $0.10 | cGMP (NPA A-rated) | B000BQSQ68 | — | 2026-10-10 |
| NOW Foods Taurine 1000 mg (250 Veg Caps) | NOW Foods | 1000 mg taurine / 1 veg capsule | 250 | $17.40 | $0.14 | cGMP (NPA A-rated) | B00663G4ZK | best-capsule | 2026-10-10 |
| Double Wood Taurine 1000 mg (180 Caps) | Double Wood | 1000 mg taurine / 2 capsules | 90 | $8.95 | $0.20 | Third-party tested, cGMP | B0CH1N1DV8 | — | 2026-10-10 |
| Jarrow Formulas Taurine 1000 mg (100 Caps) | Jarrow Formulas | 1000 mg taurine / 1 capsule | 100 | $12.83 | $0.26 | Non-GMO (no 3rd-party claim) | B0001VKIK0 | — | 2026-10-10 |
| Solgar Taurine 500 mg (250 Veg Caps) | Solgar | 500 mg taurine / 1 vegetable capsule | 250 | $21.47 | $0.34 | None stated | B00020IA6E | — | 2026-10-10 |

---

## Tocotrienols

**Clinical dose:** 100-300 mg/day is the typical retail and trial range
**Use cases:** vitamin E family antioxidant support (weak, mixed, largely industry-funded evidence)
**Form verdict:** annatto (tocopherol-free) sourcing matches the trial rationale better than a mixed-tocopherol blend, since co-administered tocopherol was reported to blunt tocotrienol effects in one foundational trial — but the overall evidence is weak and mixed
**Main page:** https://verifiedsupplementdata.com/tocotrienols/
**Guides:** https://verifiedsupplementdata.com/tocotrienols/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| NOW Advanced Gamma E Complex | NOW Foods | 0 mg tocotrienols (not isomer-broken-out; label states "Mixed Tocopherols & Tocotrienols") / 1 softgel | 120 | $22.99 | $0.18 | None claimed for tocotrienol content specifically | B0013HV8RI | label-literacy-caution-example | 2026-10-10 |
| Healthy Origins Tocomin SupraBio 50mg | Healthy Origins | 50 mg tocotrienols (full-spectrum palm) / 1 softgel | 60 | $15.99 | $0.27 | Tocomin SupraBio-branded palm tocotrienol raw material (traceable, used in published trials); full-spectrum, contains native tocopherol | B004KU4S6S | cheapest-disclosed-dose-palm | 2026-10-10 |
| Nutricology Delta-Fraction Tocotrienols 125mg (DeltaGOLD) | Nutricology | 125 mg tocotrienols (90% delta / 10% gamma) / 1 softgel | 90 | $77.19 | $0.86 | DeltaGOLD-branded annatto tocotrienol raw material; "No Tocopherols" stated on label | B008YQJ0CG | bone-trial-isomer-match | 2026-10-10 |
| Wellness Extract Eannatto Tocotrienols 300mg | Wellness Extract | 300 mg tocotrienols (annatto) / 1 softgel | 60 | $65.99 | $1.10 | Tocopherol-free per label (annatto-derived) | B097DD7RWL | cheapest-per-mg-annatto | 2026-10-10 |
| Sunergetic Premium Annatto Tocotrienol 300mg (DeltaGold) | Sunergetic | 300 mg tocotrienols (delta+gamma) / 1 liquid capsule | 30 | $34.95 | $1.17 | DeltaGold-branded annatto tocotrienol raw material; tocopherol-free per label | B0BYM487ZM | liquid-capsule-format | 2026-10-10 |
| Designs for Health Annatto-E 300mg (DeltaGold) | Designs for Health | 300 mg tocotrienols (delta+gamma) / 1 softgel | 60 | $89.99 | $1.50 | DeltaGold-branded annatto tocotrienol raw material (traceable ingredient source); tocopherol-free per label | B07QLNW4Y5 | annatto-standardized-pick | 2026-10-10 |

---

## Tongkat Ali

**Clinical dose:** 200-400 mg/day of a standardized water extract (most trials used 200 mg), standardized to roughly 0.8-1.5% eurycomanone
**Use cases:** stress and exercise support (evidence limited)
**Form verdict:** milligrams alone mislead — the disclosed eurycomanone % matters far more than raw extract weight; a "1,000 mg" unstandardized powder can be weaker than 200 mg of a properly standardized extract
**Main page:** https://verifiedsupplementdata.com/supplements/tongkat-ali/
**Guides:** https://verifiedsupplementdata.com/tongkat-ali/ · https://verifiedsupplementdata.com/tongkat-ali/best-overall/ · https://verifiedsupplementdata.com/tongkat-ali/third-party-tested/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nootropics Depot Tongkat Ali 2% Eurycomanone (200mg, 120ct) | Nootropics Depot | 200 mg / 1 capsule | 120 | $37.98 | $0.32 | Third-Party Tested (HPTLC) | B088GMRS82 | best-value | 2026-10-10 |
| Double Wood Tongkat Ali 200:1 Extract (1000mg, 120ct) | Double Wood | 1000 mg / 2 capsules | 60 | $24.95 | $0.42 | Third-Party Tested | B07TTDFXFV | budget | 2026-10-10 |
| Nootropics Depot Tongkat Ali 10% Eurycomanone (100mg, 120ct) | Nootropics Depot | 100 mg / 1 capsule | 120 | $77.99 | $0.65 | Third-Party Tested (HPTLC) | B09WZ4PY86 | quality | 2026-10-10 |
| Momentous Tongkat Ali (400mg, 30 servings) | Momentous | 400 mg / 2 capsules | 30 | $19.99 | $0.67 | Informed Sport Certified | B09WX9VHVX | — | 2026-10-10 |

---

## Tryptophan

**Clinical dose:** about 1 gram before bed (literature-wide studied range roughly 250 mg to 3 g)
**Use cases:** sleep support
**Form verdict:** L-tryptophan is the identical molecule across brands, so cost per gram is the meaningful comparison; take on an empty stomach or with a small carbohydrate snack away from protein for better brain uptake
**Main page:** https://verifiedsupplementdata.com/melatonin/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| BulkSupplements.com L-Tryptophan Capsules 500 mg | BulkSupplements | 1000 mg L-tryptophan / 2 capsules (1,000 mg) | 120 | $19.96 | $0.17 | Manufactured in a GMP facility | B0CKWLK292 | best-value | 2026-10-10 |
| Nutricost L-Tryptophan 500 mg (with BioPerine) | Nutricost | 1000 mg L-tryptophan / 2 capsules (1,000 mg) | 60 | $15.95 | $0.27 | Manufactured in a GMP facility | B01M03S1JU | cheapest-sticker | 2026-10-10 |
| NOW Foods L-Tryptophan 1,000 mg Double Strength | NOW Foods | 1000 mg L-tryptophan / 1 tablet (1,000 mg) | 60 | $18.21 | $0.30 | Manufactured in a GMP facility | B002JNIAQW | most-practical | 2026-10-10 |
| Source Naturals L-Tryptophan 500 mg | Source Naturals | 1000 mg L-tryptophan / 2 capsules (1,000 mg) | 60 | $19.50 | $0.32 | Manufactured in a GMP facility | B000GFSVS2 | — | 2026-10-10 |
| NOW Foods L-Tryptophan 500 mg | NOW Foods | 1000 mg L-tryptophan / 2 capsules (1,000 mg) | 60 | $21.39 | $0.37 | Manufactured in a GMP facility | B0019LWV56 | — | 2026-10-10 |
| Doctor's Best L-Tryptophan 500 mg | Doctor's Best | 1000 mg L-tryptophan / 2 capsules (1,000 mg) | 45 | $19.99 | $0.44 | Vegan, Non-GMO, Gluten-Free (label claims) | B000F76BD8 | clean-label | 2026-10-10 |

---

## Urolithin A

**Clinical dose:** 500 mg/day (positive on hamstring strength) or 1,000 mg/day (used in every endurance-focused trial; added VO2peak/6-minute-walk gains over 500mg within one trial)
**Use cases:** muscle strength and exercise/endurance performance in middle-aged and older adults
**Form verdict:** molecular form matters as much as milligrams — every human trial dose refers to FREE urolithin A; urolithin A diacetate has never itself been tested in a human trial and should not be assumed dose-equivalent
**Main page:** https://verifiedsupplementdata.com/urolithin-a/
**Guides:** https://verifiedsupplementdata.com/urolithin-a/ · https://verifiedsupplementdata.com/urolithin-a/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nutri Urolithin A DIACETATE | Nutri | 1000 mg urolithin A diacetate / 2 capsules | 15 | $31.67 | $2.11 | No third-party testing disclosed | B0CC438LCK | cheapest-per-day-wrong-molecule | 2026-10-10 |
| Pure Encapsulations Renual | Pure Encapsulations | 250 mg free urolithin A (Mitopure-branded) / 2 capsules | 30 | $79.00 | $2.63 | Mitopure-branded free urolithin A (Amazentis raw material, the ingredient used in every human trial cited on this site) — bundled with resveratrol 150mg + CoQ10 60mg per serving | B08VDB31YY | closest-to-trial-grade-caveated | 2026-10-10 |

---

## Vitamin A

**Clinical dose:** RDA 900 mcg RAE/day (men), 700 mcg RAE/day (women); upper limit 3,000 mcg RAE/day (10,000 IU) for preformed vitamin A only
**Use cases:** general vitamin A intake (most people do not need to supplement preformed vitamin A)
**Form verdict:** most people are already replete from food and should NOT supplement preformed vitamin A without a documented reason; if you do, the lowest-dose product within the RDA-to-UL range is the honest pick, not the highest-potency one
**Main page:** https://verifiedsupplementdata.com/vitamin-a/
**Guides:** https://verifiedsupplementdata.com/vitamin-a/ · https://verifiedsupplementdata.com/vitamin-a/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nutricost Vitamin A 25,000 IU, 500 Softgels | Nutricost | 25000 IU / 1 softgel | 500 | $20.95 | $0.04 | None stated | B0BBPZS9JQ | — | 2026-10-10 |
| NOW Foods Vitamin A (Fish Liver Oil) 25,000 IU, 250 Softgels | NOW Foods | 25000 IU / 1 softgel | 250 | $12.15 | $0.05 | None stated | B001B4P0I6 | — | 2026-10-10 |
| Solgar Dry Vitamin A 1,500mcg (5,000 IU), 100 Tablets | Solgar | 5000 IU / 1 tablet | 100 | $7.33 | $0.07 | None stated | B000VZ1D6Y | best-overall | 2026-10-10 |
| Carlson Vitamin A Solubilized, 10,000 IU (3,000mcg RAE), 100 Softgels | Carlson | 10000 IU / 1 softgel | 100 | $10.12 | $0.10 | None stated | B06XSM6GZ7 | — | 2026-10-10 |
| Country Life Vitamin A 10,000 IU — 50% Beta-Carotene & 50% Retinyl Palmitate, 100 Tablets | Country Life | 10000 IU / 1 tablet | 100 | $13.99 | $0.14 | None stated | B00020IL1S | — | 2026-10-10 |

---

## Vitamin B12

**Clinical dose:** RDA 2.4 mcg/day for maintenance; higher oral amounts are used under a doctor's guidance when a deficiency is confirmed
**Use cases:** B12 intake for vegans/vegetarians and adults 50+
**Form verdict:** form (methylcobalamin vs. cyanocobalamin) and delivery (sublingual vs. swallowed) barely matter — a 2025 systematic review found no significant difference in raising blood levels; buy whichever you'll take consistently
**Main page:** https://verifiedsupplementdata.com/supplements/vitamin-b12/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Carlyle Vitamin B12 100 mcg (200 Tablets) | Carlyle | 100 mcg / 1 tablet | 200 | $7.99 | $0.03 | None | B0B64JX9M7 | — | 2026-10-10 |
| Nature Made Vitamin B12 1000 mcg Sublingual Fast Dissolve | Nature Made | 1000 mcg / 1 fast dissolve tablet | 150 | $16.85 | $0.11 | USP Verified | B0828JPPMX | best-value | 2026-10-10 |
| Jarrow Formulas Methyl B-12 1000 mcg Lemon | Jarrow Formulas | 1000 mcg / 1 chewable tablet | 100 | $11.92 | $0.12 | None | B002FJW3ZY | budget | 2026-10-10 |
| NOW Foods Methyl B-12 5000 mcg Lozenges | NOW Foods | 5000 mcg / 1 lozenge | 60 | $14.99 | $0.26 | None | B003O1R73U | — | 2026-10-10 |
| Solgar Methylcobalamin (Vitamin B12) 5000 mcg Sublingual Nuggets | Solgar | 5000 mcg / 1 nugget (sublingual) | 60 | $19.69 | $0.33 | None | B001LR047U | — | 2026-10-10 |
| Thorne Vitamin B12 as Methylcobalamin 1 mg | Thorne | 1000 mcg / 1 capsule | 60 | $24.00 | $0.40 | NSF Certified for Sport | B002BKW1YA | quality | 2026-10-10 |

---

## Vitamin B6

**Clinical dose:** RDA ~1.3-1.7 mg/day; Upper Limit 100 mg/day
**Use cases:** general B6 intake
**Form verdict:** sane everyday dose is ≤25 mg/day elemental B6; P5P labels can overstate elemental B6 content, and 100 mg/day is the same as the Upper Limit with no safety margin
**Main page:** https://verifiedsupplementdata.com/vitamin-b6/best-overall/
**Guides:** https://verifiedsupplementdata.com/vitamin-b6/ · https://verifiedsupplementdata.com/vitamin-b6/best-overall/ · https://verifiedsupplementdata.com/vitamin-b6/dosage-guide/ · https://verifiedsupplementdata.com/vitamin-b6/neuropathy-and-the-upper-limit/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nutricost Vitamin B6 (Pyridoxine HCl) 25 mg (240 Capsules) | Nutricost | 25 mg B6 / 1 capsule | 240 | $11.95 | $0.05 | None | B0B3LHGB19 | — | 2026-10-10 |
| Nature's Bounty Vitamin B6 100 mg (100 Tablets) | Nature's Bounty | 100 mg B6 / 1 tablet | 100 | $4.94 | $0.05 | None | B0006NIOJA | — | 2026-10-10 |
| Nutricost Vitamin B6 (Pyridoxine HCl) 100 mg (240 Capsules) | Nutricost | 100 mg B6 / 1 capsule | 240 | $11.95 | $0.05 | None | B01IJ32F34 | — | 2026-10-10 |
| NOW Vitamin B-6 (Pyridoxine HCl) 100 mg (250 Capsules) | NOW Foods | 100 mg B6 / 1 capsule | 250 | $12.61 | $0.05 | None | B005P0XRK0 | — | 2026-10-10 |
| Solgar Vitamin B6 25 mg (100 Tablets) | Solgar | 25 mg B6 / 1 tablet | 100 | $6.20 | $0.06 | None | B000Z8VGE6 | — | 2026-10-10 |
| Nutricost P5P Vitamin B6 50 mg (240 Capsules) | Nutricost | 50 mg B6 / 1 capsule | 240 | $16.95 | $0.07 | None | B08YS9T41V | — | 2026-10-10 |
| Nature Made Vitamin B6 100 mg (100 Tablets, USP) | Nature Made | 100 mg B6 / 1 tablet | 100 | $10.48 | $0.11 | USP Verified | B018EAQ6YG | — | 2026-10-10 |
| NOW P-5-P 50 mg with Magnesium (90 Capsules) | NOW Foods | 33 mg B6 / 1 capsule | 90 | $12.70 | $0.14 | None | B0753G21CW | — | 2026-10-10 |
| Country Life P-5-P 50 mg (100 Tablets) | Country Life | 34 mg B6 / 1 tablet | 100 | $14.99 | $0.15 | None | B0019GXQK0 | — | 2026-10-10 |
| Life Extension Pyridoxal 5'-Phosphate 100 mg (60 Capsules) | Life Extension | 100 mg B6 / 1 capsule | 60 | $16.50 | $0.28 | None | B004BZKZ0U | — | 2026-10-10 |
| Pure Encapsulations P5P 50 (180 Capsules) | Pure Encapsulations | 50 mg B6 / 1 capsule | 180 | $52.50 | $0.29 | None | B001WUTBBQ | — | 2026-10-10 |
| Thorne Pyridoxal 5'-Phosphate (180 Capsules) | Thorne | 34 mg B6 / 1 capsule | 180 | $56.00 | $0.31 | None | B000KJPPTC | — | 2026-10-10 |

---

## Vitamin C

**Clinical dose:** RDA 75-90 mg/day; practical max ~200-400 mg/day split into two doses since absorption saturates near 200 mg/dose
**Use cases:** general antioxidant/immune support, iron absorption
**Form verdict:** 1,000 mg megadoses give little added benefit over ~200-400 mg since plasma saturates; liposomal shows modestly higher blood levels but unproven real-world benefit over plain ascorbic acid
**Main page:** https://verifiedsupplementdata.com/supplements/vitamin-c/
**Guides:** https://verifiedsupplementdata.com/vitamin-c/ · https://verifiedsupplementdata.com/vitamin-c/best-overall/ · https://verifiedsupplementdata.com/vitamin-c/dosage-guide/ · https://verifiedsupplementdata.com/vitamin-c/forms-compared/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| NOW Foods Vitamin C-1000 with Bioflavonoids | NOW Foods | 1000 mg / 1 capsule | 250 | $18.50 | $0.07 | None | B0013OUNK4 | budget | 2026-10-10 |
| Nature's Bounty Vitamin C 1000 mg Caplets | Nature's Bounty | 1000 mg / 1 caplet | 100 | $6.97 | $0.07 | None | B0061GLRN6 | — | 2026-10-10 |
| Nature Made Vitamin C 1000 mg Extra Strength | Nature Made | 1000 mg / 1 tablet | 100 | $8.53 | $0.08 | USP Verified | B0000DJASY | best-value | 2026-10-10 |
| Thorne Vitamin C with Flavonoids | Thorne | 500 mg / 1 capsule | 90 | $23.00 | $0.51 | NSF Certified for Sport (brand-stated; not confirmed in the public registry) | B09FYFM7N3 | quality | 2026-10-10 |

---

## Vitamin D3

**Clinical dose:** maintenance 1,000-2,000 IU/day; NIH Upper Limit 4,000 IU/day
**Use cases:** bone health, immune support
**Form verdict:** use D3 (cholecalciferol), not D2 (ergocalciferol), since D3 raises blood levels more reliably
**Main page:** https://verifiedsupplementdata.com/supplements/vitamin-d3/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Viva Naturals Vitamin D3 5000 IU | Viva Naturals | 5000 IU / 1 softgel | 360 | $9.99 | $0.03 | None | B00FQKI3W6 | budget | 2026-10-10 |
| NOW Foods Vitamin D3 5000 IU | NOW Foods | 5000 IU / 1 softgel | 240 | $11.97 | $0.05 | None | B0032BH76O | — | 2026-10-10 |
| Nature Made Vitamin D3 2000 IU | Nature Made | 2000 IU / 1 softgel | 250 | $17.20 | $0.08 | USP Verified | B004GJYTF8 | best-value | 2026-10-10 |
| Nature Made Vitamin D3 5000 IU | Nature Made | 5000 IU / 1 softgel | 180 | $14.15 | $0.08 | USP Verified | B008GC9T6A | quality | 2026-10-10 |
| Thorne Vitamin D3 + K2 Liquid | Thorne | 1000 IU / 2 drops (~1000 IU D3 + K2) | 600 | $34.00 | $0.11 | NSF Certified for Sport | B0038NF8MG | — | 2026-10-10 |
| Nordic Naturals Vitamin D3 1000 IU | Nordic Naturals | 1000 IU / 1 mini softgel | 120 | $15.26 | $0.13 | None | B002JOS7WS | — | 2026-10-10 |
| Garden of Life Organics Vegan D3 Spray (1000 IU) | Garden of Life | 1000 IU / 1 spray | 125 | $17.49 | $0.14 | USDA Organic, Vegan | B00K5NEPLW | — | 2026-10-10 |
| Sports Research Vitamin D3 + K2 (5000 IU + 100mcg MK-7) | Sports Research | 5000 IU / 1 veggie softgel | 60 | $23.95 | $0.40 | Non-GMO Verified, Vegan | B07255MPRN | — | 2026-10-10 |

---

## Vitamin D3 2000


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| NOW Vitamin D-3 2,000 IU (240 softgels) | NOW Foods | 2000 IU / 1 softgel | 240 | $7.51 | $0.03 | NPA GMP Certified | B001UZPY1O | budget | 2026-10-10 |
| Nature's Bounty Vitamin D3 2000 IU (350 softgels) | Nature's Bounty | 2000 IU / 1 softgel | 350 | $9.99 | $0.03 | None | B00DYSUQEA | — | 2026-10-10 |
| Carlyle Vitamin D3 2000 IU (400 softgels) | Carlyle | 2000 IU / 1 softgel | 400 | $13.99 | $0.03 | None stated (laboratory tested claim) | B085KB5GBT | — | 2026-10-10 |
| NatureWise Vitamin D3 2000 IU in Olive Oil (360 mini softgels) | NatureWise | 2000 IU / 1 mini softgel | 360 | $14.49 | $0.04 | NSF Contents Certified | B01J2ZA8HI | tested | 2026-10-10 |
| Nature Made Vitamin D3 2000 IU Tablets (220 tablets) | Nature Made | 2000 IU / 1 tablet | 220 | $9.99 | $0.05 | USP Verified (brand-stated; not confirmed in the public registry) | B004U3Y8NI | usp | 2026-10-10 |

---

## Vitamin D3 5000


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| NatureWise Vitamin D3 5000 IU in Olive Oil (360 mini softgels) | NatureWise | 5000 IU / 1 mini softgel | 360 | $14.99 | $0.04 | NSF Contents Certified | B00GB85JR4 | tested | 2026-10-10 |
| Nutricost Vitamin D3 5,000 IU (240 softgels) | Nutricost | 5000 IU / 1 softgel | 240 | $12.95 | $0.05 | None stated (third-party tested claim) | B0764MS2Q2 | budget | 2026-10-10 |
| Sports Research Vitamin D3 5000 IU with Coconut Oil (360 softgels) | Sports Research | 5000 IU / 1 mini softgel | 360 | $18.95 | $0.05 | Non-GMO tested | B00JGCBGZQ | — | 2026-10-10 |
| Nature's Bounty Vitamin D3 5000 IU (240 softgels) | Nature's Bounty | 5000 IU / 1 softgel | 240 | $13.94 | $0.06 | None | B00DN4VCA2 | — | 2026-10-10 |
| Nutricost Vitamin D3 5000 IU + K2 100 mcg MK-7 (120 softgels) | Nutricost | 5000 IU / 1 softgel | 120 | $14.95 | $0.12 | None stated | B07K3VFVJC | with-k2 | 2026-10-10 |

---

## Vitamin D3 5000 K2


| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Horbäach Vitamin D3 5000 IU + K2 MK-7 100 mcg (180 softgels) | Horbäach | 5000 IU / 1 softgel | 180 | $9.88 | $0.05 | None stated (laboratory tested claim) | B07N7Q92NJ | budget | 2026-10-10 |
| Micro Ingredients Vitamin D3 5,000 IU + K2 MK-7 100 mcg (300 softgels) | Micro Ingredients | 5000 IU / 1 softgel | 300 | $23.96 | $0.08 | None stated (third-party lab tested claim) | B07RX4P4RL | — | 2026-10-10 |
| NOW Mega D-3 & MK-7 5,000 IU / 180 mcg (120 veg capsules) | NOW Foods | 5000 IU / 1 capsule | 120 | $22.40 | $0.19 | NPA GMP Certified | B09RG6LXJ2 | k2-dose | 2026-10-10 |
| Nature Made Vitamin D3 5000 IU + K2 100 mcg (30 softgels) | Nature Made | 5000 IU / 1 softgel | 30 | $12.58 | $0.42 | USP Verified (brand-stated; not confirmed in the public registry) | B09SR2KX9D | usp | 2026-10-10 |

---

## Vitamin E

**Clinical dose:** RDA ~15 mg (~22 IU)/day, usually met by diet; the standard 400 IU bottle dose (~18x RDA) is NOT a recommended daily dose — it is the dose where large trials found harm signals; UL 1,000 mg/day supplemental
**Use cases:** general antioxidant support (true deficiency is rare; most people meet the RDA from food)
**Form verdict:** do not take the standard 400 IU bottle dose routinely — large randomized trials linked it to increased prostate cancer, heart failure, and all-cause mortality; food covers the RDA for most people and no supplement is usually needed
**Main page:** https://verifiedsupplementdata.com/vitamin-e/
**Guides:** https://verifiedsupplementdata.com/vitamin-e/ · https://verifiedsupplementdata.com/vitamin-e/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nature's Bounty Vitamin E 400 IU Natural d-Alpha (120 Softgels) | Nature's Bounty | 400 IU alpha-tocopherol / 1 softgel | 120 | $9.99 | $0.08 | None | B001KYW8BE | — | 2026-10-10 |
| NOW Vitamin E-400 IU d-Alpha Tocopheryl (250 Softgels) | NOW Foods | 400 IU alpha-tocopherol / 1 softgel | 250 | $19.99 | $0.08 | None | B0013OSMC0 | — | 2026-10-10 |
| Nature Made Vitamin E 180 mg (400 IU) dl-Alpha (100 Softgels, USP) | Nature Made | 400 IU alpha-tocopherol / 1 softgel | 100 | $8.89 | $0.10 | USP Verified | B0012DENSE | — | 2026-10-10 |
| Solgar Vitamin E 268 mg (400 IU) d-Alpha + Mixed Tocopherols (100 Softgels) | Solgar | 400 IU alpha-tocopherol / 1 softgel | 100 | $13.74 | $0.14 | None | B0001VURB0 | — | 2026-10-10 |
| NOW Vitamin E-400 with Mixed Tocopherols (100 Softgels) | NOW Foods | 400 IU alpha-tocopherol / 1 softgel | 100 | $14.29 | $0.15 | None | B0001SR8J2 | — | 2026-10-10 |
| Nature's Bounty Vitamin E 400 IU Pure dl-Alpha (120 Softgels) | Nature's Bounty | 400 IU alpha-tocopherol / 1 softgel | 120 | $19.94 | $0.16 | None | B01IAID1H2 | — | 2026-10-10 |
| Puritan's Pride Vitamin E 400 IU Natural d-Alpha (100 Softgels) | Puritan's Pride | 400 IU alpha-tocopherol / 1 softgel | 100 | $30.49 | $0.28 | None | B004R5ZMV6 | — | 2026-10-10 |
| Doctor's Best Vitamin E Tocotrienols (TocoGaia) (60 Softgels) | Doctor's Best | 20 IU alpha-tocopherol / 1 softgel | 60 | $19.99 | $0.33 | None | B00AZQXO3E | — | 2026-10-10 |
| Life Extension Gamma E Mixed Tocopherols (60 Softgels) | Life Extension | 45 IU alpha-tocopherol / 1 softgel | 60 | $24.00 | $0.40 | None | B01KYK9D4Y | — | 2026-10-10 |
| Pure Encapsulations Vitamin E with Mixed Tocopherols (90 Softgels) | Pure Encapsulations | 400 IU alpha-tocopherol / 1 softgel | 90 | $37.50 | $0.42 | None | B0017QCEFK | — | 2026-10-10 |
| Life Extension Gamma E Mixed Tocopherols & Tocotrienols (60 Softgels) | Life Extension | 45 IU alpha-tocopherol / 1 softgel | 60 | $30.00 | $0.50 | None | B000VHV3BM | — | 2026-10-10 |
| Metagenics Vitamin E Mixed Tocopherols E Complex 1:1 (60 Softgels) | Metagenics | 400 IU alpha-tocopherol / 2 softgels | 30 | $34.95 | $1.16 | None | B003BI2MEU | — | 2026-10-10 |

---

## Vitamin K

**Clinical dose:** Adequate Intake 120 mcg/day (men) / 90 mcg/day (women); MK-7 trial-anchored dose 90-180 mcg/day; no established Upper Limit
**Use cases:** general dietary insurance (K1) and bone/vascular calcium routing (K2/MK-7); critical warfarin interaction
**Form verdict:** K1 covers general dietary insurance from leafy greens; for supplementation MK-7 (not MK-4) is practical since MK-4 needs a pharmacologic ~45 mg/day (roughly 450-1,000x an MK-7 dose) to show any effect in trials
**Main page:** https://verifiedsupplementdata.com/vitamin-k/
**Guides:** https://verifiedsupplementdata.com/vitamin-k/ · https://verifiedsupplementdata.com/vitamin-k/dosage-guide/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| NOW Foods Vitamin K-2 100 mcg, Menaquinone-4 (MK-4) | NOW Foods | 100 mcg / 1 veg capsule | 100 | $7.47 | $0.07 | None | B0013EJ5QM | k2-mk4-standalone | 2026-10-10 |
| Bluebonnet Vitamin K1 100 mcg | Bluebonnet | 100 mcg / 1 caplet | 100 | $10.36 | $0.10 | None | B000I48QBS | k1-standalone | 2026-10-10 |
| Nutricost Vitamin D3 (5,000 IU) + K2 (MK-7 100 mcg) | Nutricost | 100 mcg / 1 softgel | 120 | $14.95 | $0.12 | None | B07K3VFVJC | d3-k2-combo | 2026-10-10 |
| Thorne Vitamin K (K1 + MK-4 + MK-7) (60 capsules) | Thorne | 90 mcg / 1 capsule | 60 | $31.00 | $0.52 | NSF/ANSI 173 | B0797N3F9T | multi-form-blend | 2026-10-10 |

---

## Vitamin K2

**Clinical dose:** 90-200 mcg/day of MK-7 (the two landmark 3-year trials used 180 mcg/day); MK-4 is dosed completely differently (up to 45 mg/day) and is not interchangeable mcg-for-mcg with MK-7
**Use cases:** bone density support, arterial stiffness/vascular support, often paired with vitamin D; critical warfarin interaction
**Form verdict:** MK-7 is the practical everyday K2 form (long half-life, effective at micrograms); vitamin K2 directly opposes warfarin and must never be started, stopped, or changed without the prescribing doctor managing it
**Main page:** https://verifiedsupplementdata.com/vitamin-k2/best-overall/
**Guides:** https://verifiedsupplementdata.com/vitamin-k2/ · https://verifiedsupplementdata.com/vitamin-k2/best-overall/ · https://verifiedsupplementdata.com/vitamin-k2/dosage-guide/ · https://verifiedsupplementdata.com/vitamin-k2/mk7-vs-mk4/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Horbaach Vitamin K2 MK-7 100 mcg (250 softgels) | Horbaach | 100 mcg / 1 softgel | 250 | $16.23 | $0.06 | Laboratory Tested (no outside lab named) | B0983ZKZKY | — | 2026-10-10 |
| Nutricost Vitamin K2 MK-7 100 mcg (240 softgels) | Nutricost | 100 mcg / 1 softgel | 240 | $17.95 | $0.07 | Third Party Tested (brand claim) | B09126BY8S | best-value | 2026-10-10 |
| Bronson Vitamin K2 as MK-7 100 mcg (120 vegetarian capsules) | Bronson | 100 mcg / 1 capsule | 120 | $14.99 | $0.12 | None | B07S417XN6 | — | 2026-10-10 |
| Life Extension Low Dose Vitamin K2 45 mcg (90 softgels) | Life Extension | 45 mcg / 1 softgel | 90 | $13.50 | $0.15 | None | B001KSNDSM | — | 2026-10-10 |
| NatureWise Vegan Vitamin K2 600 mcg (MK-7 100 + MK-4 500) (90 softgels) | NatureWise | 100 mcg / 1 softgel | 90 | $14.99 | $0.17 | None | B08GL27RSG | — | 2026-10-10 |
| NOW Foods MK-7 Vitamin K2 100 mcg (60 veg capsules) | NOW Foods | 100 mcg / 1 capsule | 60 | $13.46 | $0.22 | Made and quality tested in the USA (no outside lab named) | B004QD4PHQ | quality | 2026-10-10 |
| Doctor's Best Natural Vitamin K2 MK-7 with MenaQ7 100 mcg (60 veggie capsules) | Doctor's Best | 100 mcg / 1 capsule | 60 | $13.99 | $0.23 | None | B00O4BQIQQ | — | 2026-10-10 |
| Life Extension Super K (K1 + MK-4 + MK-7) (90 softgels) | Life Extension | 180 mcg / 1 softgel | 90 | $24.00 | $0.27 | None | B07RL1J9BV | comprehensive | 2026-10-10 |
| NOW Foods MK-7 Vitamin K2 Extra Strength 300 mcg (60 veg capsules) | NOW Foods | 300 mcg / 1 capsule | 60 | $17.99 | $0.30 | Made and quality tested in the USA (no outside lab named) | B086QYVQSZ | high-dose | 2026-10-10 |
| Sports Research Vitamin K2 MK-7 100 mcg (60 softgels) | Sports Research | 100 mcg / 1 softgel | 60 | $17.95 | $0.30 | Third Party Tested (brand claim) | B00JGCPAYY | — | 2026-10-10 |
| InnovixLabs Full Spectrum Vitamin K2 (MK-7 100 + MK-4 500) (90 softgels) | InnovixLabs | 100 mcg / 1 softgel | 90 | $26.95 | $0.30 | Third-party tested in USA (brand claim on label) | B00T8NROWM | — | 2026-10-10 |
| Jarrow Formulas MK-7 90 mcg (60 softgels) | Jarrow Formulas | 90 mcg / 1 softgel | 60 | $18.74 | $0.31 | None | B0013OVVFA | — | 2026-10-10 |
| Sports Research Vitamin K2 MK-7 180 mcg (60 softgels) | Sports Research | 180 mcg / 1 softgel | 60 | $18.95 | $0.32 | Third Party Tested (brand claim) | B0CQ8V8YQ1 | — | 2026-10-10 |
| Solgar Naturally Sourced Vitamin K2 MK-7 100 mcg (50 veg capsules) | Solgar | 100 mcg / 1 capsule | 50 | $16.22 | $0.32 | None | B001ATATX8 | — | 2026-10-10 |
| Nature Made Vitamin K2 100 mcg (30 softgels) | Nature Made | 100 mcg / 1 softgel | 30 | $15.52 | $0.52 | USP Verified | B00CEYD5GG | — | 2026-10-10 |
| Sports Research Vitamin D3 + K2 | Sports Research | 100 mcg / 1 softgel | 30 | $16.95 | $0.57 | None | B08YD4JRXV | d3-combo | 2026-10-10 |
| MaryRuth's Organic Vitamin K2 (MK-7) Liquid Drops (1 oz) | MaryRuth's | 100 mcg / 1 mL | 30 | $19.95 | $0.66 | None | B099H36XNV | — | 2026-10-10 |

---

## Zinc

**Clinical dose:** RDA 11 mg/day (men) / 8 mg/day (women); typical daily supplement 15-30 mg; upper limit for ongoing daily intake is 40 mg/day
**Use cases:** immune sufficiency, general zinc adequacy (daily supplementation)
**Form verdict:** well-absorbed forms (picolinate, glycinate, citrate, gluconate) at 15-30 mg/day with food; avoid zinc oxide as the main source since it is the most poorly absorbed common form
**Main page:** https://verifiedsupplementdata.com/supplements/zinc/
**Guides:** https://verifiedsupplementdata.com/zinc/ · https://verifiedsupplementdata.com/zinc/best-overall/ · https://verifiedsupplementdata.com/zinc/dosage-guide/ · https://verifiedsupplementdata.com/zinc/forms-compared/ · https://verifiedsupplementdata.com/zinc/now-foods-vs-thorne/ · https://verifiedsupplementdata.com/zinc/picolinate-vs-glycinate/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| NOW Foods Zinc Glycinate 30mg (120ct) | NOW Foods | 30 mg / 1 softgel | 120 | $11.01 | $0.10 | None | B002JNCXME | best-value | 2026-10-10 |
| Solgar Zinc Citrate 30 mg (100 Vegetable Capsules) | Solgar | 30 mg / 1 vegetable capsule | 100 | $9.74 | $0.10 | None | B0011FT5GS | — | 2026-10-10 |
| Garden of Life Vitamin Code Raw Zinc (30mg, 60ct) | Garden of Life | 30 mg / 1 capsule | 60 | $11.19 | $0.19 | Non-GMO Verified | B0098U0QC0 | budget | 2026-10-10 |
| Thorne Zinc Picolinate 30mg (60ct) | Thorne | 30 mg / 1 capsule | 60 | $20.00 | $0.33 | NSF Certified for Sport | B0012ZQPKG | quality | 2026-10-10 |

---

## Zinc Lozenge

**Clinical dose:** follow the label; total zinc from lozenges can far exceed the 40 mg/day upper limit for ongoing intake, so they are for short-term use only — not the same as a daily 15-30 mg capsule
**Use cases:** short-term zinc lozenge use (not daily immune maintenance)
**Form verdict:** cold lozenges (zinc acetate or gluconate, dissolved in the mouth) are a separate short-term product from daily zinc capsules; the lozenge dose must not be taken long-term (copper deficiency risk above 40 mg/day)
**Main page:** https://verifiedsupplementdata.com/zinc/forms-compared/

| Product | Brand | Dose/Serving | Servings | Price | Cost/Day | Certification | ASIN | Pick | Price verified |
|---|---|---|---|---|---|---|---|---|---|
| Nature's Way Zinc Lozenges with Vitamin C & Echinacea (60 Lozenges) | Nature's Way | 23 mg / 1 lozenge | 60 | $5.04 | $0.08 | None | B00024D3SK | best-value | 2026-10-10 |
| Quantum Health TheraZinc Elderberry Zinc Lozenges (18 Lozenges) | Quantum Health | 7 mg / 1 lozenge | 18 | $8.17 | $0.46 | None | B06XVYR19G | quality | 2026-10-10 |

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