Best Vitamin B12 Supplements 2026: Cost per Effective Dose
Top pick for Vitamin B12: Nature Made Vitamin B12 1000 mcg Sublingual Fast Dissolve — 1000mcg per 1 fast dissolve tablet, USP Verified, $0.11/day. Our best-value pick.
All Vitamin B12 Supplements Compared
All 6 products sorted by cost per labelled serving (lowest first). Dose, certification, and pricing verified against NIH DSLD and manufacturer data.
Read the dose column before the price column. Servings in this category are not equivalent — they range from 100 to 5,000 mcg per serving. A lower cost per day here can simply mean a smaller serving, so the cheapest row is not automatically the best value.
| Product | Brand | Dose / Serving | Cost / Day | Certification | Pick | Buy |
|---|---|---|---|---|---|---|
| Carlyle Vitamin B12 100 mcg (200 Tablets) | Carlyle | 100mcg / 1 tablet | $0.03 | None | Buy | |
| Nature Made Vitamin B12 1000 mcg Sublingual Fast Dissolve | Nature Made | 1000mcg / 1 fast dissolve tablet | $0.11 | USP Verified | Best Value | Buy |
| Jarrow Formulas Methyl B-12 1000 mcg Lemon | Jarrow Formulas | 1000mcg / 1 chewable tablet | $0.12 | None | Budget Pick | Buy |
| Solgar Methylcobalamin (Vitamin B12) 5000 mcg Sublingual Nuggets | Solgar | 5000mcg / 1 nugget (sublingual) | $0.22 | None | Buy | |
| NOW Foods Methyl B-12 5000 mcg Lozenges | NOW Foods | 5000mcg / 1 lozenge | $0.25 | None | Buy | |
| Thorne Vitamin B12 as Methylcobalamin 1 mg | Thorne | 1000mcg / 1 capsule | $0.40 | NSF Certified for Sport | Quality Pick | Buy |
In-Depth Vitamin B12 Guides
Go deeper on vitamin b12 — by goal, by form, and what the evidence actually supports:
- B12 Side Effects & What to Watch
- B12 Benefits: Why Deficiency Decides
- Best Vitamin B12 Supplement
- Dosage Guide (how much B12)
- How Much for Seniors (65+)?
- How Long Does It Take to Work?
- MMA Test (Functional B12 Marker)
- Is 1,000 mcg Too Much?
- Does B12 Help Energy & Fatigue?
- B12 for Vegans & Vegetarians
- Methylcobalamin vs Cyanocobalamin
Our Picks
Best Value: Nature Made Vitamin B12 1000 mcg Sublingual Fast Dissolve
1000mcg per 1 fast dissolve tablet. USP Verified. $0.11/day. 150 servings per container at $16.57.
Quality Pick: Thorne Vitamin B12 as Methylcobalamin 1 mg
1000mcg per 1 capsule. NSF Certified for Sport. $0.40/day. 60 servings per container at $24.00.
Budget Pick: Jarrow Formulas Methyl B-12 1000 mcg Lemon
1000mcg per 1 chewable tablet. $0.12/day. 100 servings per container at $11.92.
How We Rank Vitamin B12 Supplements
Every product is evaluated on three criteria:
- Cost per day. Not cost per pill or cost per bottle — what it actually costs per day at the product's labelled serving. Where a category's servings differ in strength we flag it above the table, because cost per day is only comparable when the doses are.
- Third-party certification. USP Verified, NSF Certified for Sport, and ConsumerLab Approved indicate independent testing for purity, potency, and contaminants.
- Bioavailable form. We prioritize products using the specific chemical form shown to be most effective in published research.
Rankings are not influenced by affiliate commissions. We earn the same commission regardless of which product you choose. Read our full methodology.
Personalize Your Vitamin B12 Choice
Not sure which vitamin b12 supplement is right for you? Use our free tools:
- DNA Supplement Analyzer — upload 23andMe or AncestryDNA data to check for genetic variants affecting vitamin b12 metabolism. Runs entirely in your browser.
- Lab Results Interpreter — enter your blood test values to get personalized dosing recommendations.
- Supplement Stack Builder — build a complete protocol based on your age, sex, medications, and goals.
- Supplement Audit — already taking vitamin b12? Check if you have the right form and dose.