The Best Saw Palmetto Supplements of 2026
The best saw palmetto for most people is NOW Saw Palmetto Extract 160 mg: two softgels give 320 mg of standardized extract, the daily dose used in the big trials, for $0.19 a day on Amazon. We checked the labels of 17 saw palmetto supplements for a real extract, enough of it, and no hidden blend. 9 pass all three.
By Erin Rose Updated October 18, 2026 How we check
Our pick: the best saw palmetto for most men and women
NOW Saw Palmetto Extract 160 mg
Passes all three label checks and costs least per day
- Extract a day
- 320 mg2 softgels, at least 85% fatty acids
- A day
- $0.19Amazon price
- Bottle we link
- 240 softgels$22.49, lasts 120 days
- Label checks
- 3 of 3extract, dose, no hidden blend
- Tested in a lab by us
- Nowe read labels and testing lists
Why we pick it Of the 9 products that pass every check, it costs the least for the 320 mg a day the trials used. The label states the extract and its fatty acid share, and there is nothing else in it.
What you give up You take two softgels a day, and it is not on a testing list. For a bottle that is, buy Flomentum.
What to look for on a saw palmetto label
We checked every product on this page for the same three things. A product that passes all three gives you the dose the trials used, and you can see it on the label.
- A standardized extract. The trials used an extract, the oil drawn out of the berry, not ground berry. The label should say extract and give its fatty acid share, 85% or more on the products that pass.
- 320 mg a day in 1 or 2 pills. Trials gave 160 mg twice a day or 320 mg once a day (Gordon 2003). More did not do better: a trial that raised the dose to 960 mg found no added effect (Barry 2011).
- No hidden blend. Many prostate formulas mix saw palmetto with other herbs and list one total. If the label does not print saw palmetto’s own amount, you cannot tell how much you get.
Two more things on the label
Ignore the big number on the front. “2,400 mg equivalent” is the raw berry the extract was made from, and “1,000 mg” of ground berry is powder. Neither is 320 mg of extract.
Check how many pills make a serving. Some bottles need 3 or 4 a day for the amount on the front, so the bottle runs out sooner than it looks.
Other good saw palmetto supplements for specific needs
Our pick fits most people. These fit one need better.
Best for women: Doctor’s Best Saw Palmetto 320 mg
Most saw palmetto is sold to men, and most bottles sold “for women” are ground berry or weak blends with biotin. Doctor’s Best is the same kind of standardized extract as our pick, 85 to 95% fatty acids, with all 320 mg in one softgel, and it is sold for men and women. Women mostly take saw palmetto for thinning hair; the research is small and no dose is set for women (what it found). Skip it if you are pregnant or breastfeeding.
Doctor's Best Saw Palmetto 320 mg
1 a day for 320 mg · $0.38 a day
Best for men who want a prostate formula: Life Extension PalmettoGuard
Many prostate formulas hide how much saw palmetto they hold. PalmettoGuard prints it: 320 mg of a CO2 extract with 85% fatty acids in one softgel, plus beta-sitosterol and boron. Know the research first: in the largest US trials, saw palmetto did no better than a placebo for urinary symptoms (the evidence). New urinary symptoms need a doctor’s check.
Life Extension PalmettoGuard
1 a day for 320 mg · $0.40 a day
Best on a testing list: Flomentum
Flomentum is on USP Verified, which checks that a product holds what its label says and screens for contaminants. One softgel gives the full 320 mg of a CO2 extract with 85 to 95% fatty acids. It costs $0.65 more a day than our pick. Theralogix Prostate SR is on NSF/ANSI 173, a list that checks contents, and adds plant sterols, at $1.14.
Flomentum Saw Palmetto 320 mg
1 a day for 320 mg · $0.83 a day
Best one-a-day value: NOW Saw Palmetto Extract 320 mg
The same NOW extract, 85 to 95% fatty acids, with all 320 mg in one softgel and 80 mg pumpkin seed oil added. Of the one-a-day products, it costs the least.
NOW Saw Palmetto Extract 320 mg
1 a day for 320 mg · $0.27 a day
All 17 saw palmetto supplements compared
These are the saw palmetto supplements Amazon sells most, plus the ones other guides pick most. We read each label on October 18, 2026 and priced each bottle on Amazon on October 23, 2026. 9 of the 17 pass all three checks. They are listed with our picks first, then by checks passed, then by cost.
| Product | A day at 320 mg | Checks passed, and why |
|---|---|---|
| NOW Saw Palmetto Extract 160 mg2 a day for 320 mg · $22.49 a bottle | $0.19 | 3 of 3. Our pick. |
| Doctor's Best Saw Palmetto 320 mg1 a day for 320 mg · $22.99 a bottle | $0.38 | 3 of 3. Best for women. |
| Life Extension PalmettoGuard1 a day for 320 mg · $12.00 a bottle | $0.40 | 3 of 3. Best prostate formula; adds beta-sitosterol. |
| Flomentum Saw Palmetto 320 mg1 a day for 320 mg · $24.99 a bottle | $0.83 | 3 of 3. On USP Verified. |
| NOW Saw Palmetto Extract 320 mg1 a day for 320 mg · $23.99 a bottle | $0.27 | 3 of 3. Best one-a-day value. |
| Swanson Saw Palmetto 320 mg1 a day for 320 mg · $21.39 a bottle | $0.36 | 3 of 3. Passes all three. |
| Nature's Way Saw Palmetto Standardized 160 mg2 a day for 320 mg · $29.15 a bottle | $0.49 | 3 of 3. Passes all three. |
| Solaray Saw Palmetto Extract 160 mg2 a day for 320 mg · $39.04 a bottle | $0.65 | 3 of 3. Passes all three. |
| Theralogix Prostate SR2 a day for 320 mg · $102.78 a bottle | $1.14 | 3 of 3. On NSF/ANSI 173; adds plant sterols. |
| Nutricost Organic Saw Palmetto 1,000 mg2 capsules a serving · $13.95 a bottle | No extract dose | 1 of 3. Misses: ground berry, not an extract and no extract dose. |
| Nature's Bounty Saw Palmetto 450 mg1 capsule a serving · $12.37 a bottle | No extract dose | 1 of 3. Misses: berry, not stated as an extract and no extract dose. |
| Nature's Way Saw Palmetto Berries 585 mg1 capsule a serving · $19.98 a bottle | No extract dose | 1 of 3. Misses: ground berries, not an extract and no extract dose. |
| Solaray Saw Palmetto Berries 580 mg1 vegcap a serving · $43.09 a bottle | No extract dose | 1 of 3. Misses: ground berries, not an extract and no extract dose. |
| Puritan's Pride Flow Guard 450 mg1 capsule a serving · $16.42 a bottle | No extract dose | 1 of 3. Misses: berry powder, not an extract and no extract dose. |
| Horbaach Saw Palmetto 900 mg1 capsule a serving · $9.99 a bottle | No extract dose | 1 of 3. Misses: no fatty acid share on the label and no 320 mg extract dose. |
| Havasu Saw Palmetto 3X2 capsules a serving · $27.99 a bottle | No extract dose | 0 of 3. Amazon’s top seller. Misses: a powder blend with a 45% extract, no 320 mg extract dose on the label and the extract is not listed apart from the powder. |
| Nature's Truth Saw Palmetto 2,400 mg2 capsules a serving · $14.16 a bottle | No extract dose | 0 of 3. Misses: no fatty acid share, no extract dose and 2,400 mg is the raw berry it was made from, not what is in the pill. |
Common questions about saw palmetto supplements
What is the best saw palmetto supplement?
NOW Saw Palmetto Extract 160 mg for most people: 320 mg of standardized extract in two softgels for $0.19 a day. For a bottle on a testing list, buy Flomentum. For one softgel a day at a low cost, buy NOW Saw Palmetto Extract 320 mg.
Is a higher mg number better?
No. A 1,000 mg capsule of ground berry, or a "2,400 mg equivalent" on the front, is not 320 mg of extract. The extract is the oil pressed or drawn out of the berry. Look for the word extract and a fatty acid share of 85% or more on the label. The dosage guide covers berry doses.
Can women take saw palmetto?
Yes, if you are not pregnant or breastfeeding; NCCIH says it may be unsafe then. Women take the same standardized extract; see best for women above.
What are the side effects of saw palmetto?
They are mild and infrequent, says NCCIH: stomach upset, dizziness and headache. Taking it with a meal helps the stomach (Gordon 2003). Who should skip it.
Can I take saw palmetto with other medicines?
Ask your doctor or pharmacist first, as NCCIH advises for any herb, and tell your surgeon before an operation.
How long does saw palmetto take to work?
No trial set a time. Trials ran from a few weeks to 72 weeks. The 2023 Cochrane review judged short-term results at 3 to 6 months, and the longest trials ran a year or more (Franco 2023; Bent 2006; Barry 2011).
How other review sites ranked saw palmetto
Read on October 18, 2026: FitnessVolt ranks Doctor’s Best Saw Palmetto 320 mg first, Keatley ranks NOW Saw Palmetto Extract 320 mg first, and DietaryHabit and SetForSet rank Havasu first. Doctor’s Best and NOW 320 mg pass all three of our checks; our pick costs about half as much a day as Doctor’s Best. Havasu is Amazon’s top seller, but it is a powder blend with a 45% extract, so it misses all three. No other guide we read checks the testing lists or prints a cost per day.
How we checked these products
We started from the top sellers in Amazon’s saw palmetto category, added the products other guides pick most, and kept ones the brand or Amazon sells. For each, we read the label in the NIH label database where it has one, otherwise on the brand’s site or the Amazon listing. We checked USP Verified, NSF/ANSI 173, NSF Certified for Sport, Informed Choice and Informed Sport for every brand; only Flomentum and Theralogix are listed. Prices are the Amazon price of the bottle we link, updated each day. More on our method.
Sources
- Bent S, et al. “Saw palmetto for benign prostatic hyperplasia.” N Engl J Med. 2006. PubMed 16467543
- Barry MJ, et al. “Effect of increasing doses of saw palmetto extract on lower urinary tract symptoms: a randomized trial.” JAMA. 2011. PubMed 21954478
- Franco JV, et al. “Serenoa repens for the treatment of lower urinary tract symptoms due to benign prostatic enlargement.” Cochrane Database Syst Rev. 2023. PubMed 37345871
- Novara G, et al. “Efficacy and Safety of Hexanic Lipidosterolic Extract of Serenoa repens (Permixon).” Eur Urol Focus. 2016. PubMed 28723522
- Vela-Navarrete R, et al. “Efficacy and safety of a hexanic extract of Serenoa repens (Permixon) for the treatment of lower urinary tract symptoms.” BJU Int. 2018. PubMed 29694707
- Ablon G, et al. Saw palmetto extract in adults with self-perceived thinning hair: 90-day results. J Cosmet Dermatol. 2025. PubMed 41319217; 180-day results, 2026, PubMed 41652806
- Gordon AE, Shaughnessy AF. “Saw palmetto for prostate disorders.” Am Fam Physician. 2003. aafp.org
- National Center for Complementary and Integrative Health. “Saw Palmetto.” nccih.nih.gov
- Testing lists, read October 18, 2026: NSF/ANSI 173 (Theralogix Prostate SR), USP Verified (Flomentum), NSF Certified for Sport, Informed Choice and Informed Sport.
- Labels, read October 18, 2026: NIH Dietary Supplement Label Database (NOW 160 mg 314069, NOW 320 mg 245847, Doctor’s Best 269286, Nature’s Way 328055, PalmettoGuard 328635, Theralogix 207396), and the brand site or Amazon listing for the rest.
- FitnessVolt, Keatley, DietaryHabit and SetForSet best saw palmetto guides, read October 18, 2026.