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Saw Palmetto Extract

Prostate · DHT-related hair loss

Moderate evidenceVegan127 studies on PubMedRead the research
Written to our editorial standards · reviewed against published research· Updated 30 May 2026
Last reviewed: May 30, 2026

Saw Palmetto Extract: Prostate · DHT-related hair loss. Berry extract that mildly inhibits 5-alpha-reductase. Used for prostate comfort and DHT-driven hair loss in men. Standard dose 320 mg standardised, taken in the morning, about $16/month. Evidence rating: moderate evidence.

Where to buy

NOW Foods Saw Palmetto Extract 320mg
Recommended
NOW Foods, Saw Palmetto Extract
320 mg standardised · Morning · ~$16/month

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All product options

NOW Foods Saw Palmetto Extract 320mgBestseller
Saw Palmetto Extract 320mg
NOW Foods
90 softgels · $17 · ★ 4.7
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NOW Foods Saw Palmetto ExtractBestseller
Saw Palmetto Extract
NOW Foods
90 softgels · $14 · ★ 4.6
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Nature's Way Saw PalmettoBest Value
Saw Palmetto
Nature's Way
180 capsules · $16 · ★ 4.6
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Solaray Saw PalmettoPremium
Saw Palmetto
Solaray
100 veg caps · $13 · ★ 4.5
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Swanson Saw PalmettoPremium
Saw Palmetto
Swanson
250 capsules · $15 · ★ 4.5
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What is Saw Palmetto Extract?

Saw palmetto (Serenoa repens) is a small palm native to the southeastern United States, whose berries have been used in traditional medicine for over a century to support prostate and urinary health in men. The standardized extract (containing 85-95% free fatty acids and sterols) mildly inhibits 5-alpha-reductase, the enzyme that converts testosterone into dihydrotestosterone (DHT). DHT drives both benign prostatic enlargement and the androgen-mediated hair loss pattern in genetically susceptible men. Clinical research supports its use for urinary symptoms and is investigated for its mild adjunctive role in male pattern hair loss. Standard dose is 320 mg of standardized extract daily.

Berry extract that mildly inhibits 5-alpha-reductase. Used for prostate comfort and DHT-driven hair loss in men.

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Common questions

What is Saw Palmetto Extract?
Saw palmetto (Serenoa repens) is a small palm native to the southeastern United States, whose berries have been used in traditional medicine for over a century to support prostate and urinary health in men. The standardized extract (containing 85-95% free fatty acids and sterols) mildly inhibits 5-alpha-reductase, the enzyme that converts testosterone into dihydrotestosterone (DHT). DHT drives both benign prostatic enlargement and the androgen-mediated hair loss pattern in genetically susceptible men. Clinical research supports its use for urinary symptoms and is investigated for its mild adjunctive role in male pattern hair loss. Standard dose is 320 mg of standardized extract daily.
What is Saw Palmetto Extract used for?
Prostate · DHT-related hair loss. Berry extract that mildly inhibits 5-alpha-reductase. Used for prostate comfort and DHT-driven hair loss in men.
What is the standard dose of Saw Palmetto Extract?
320 mg standardised, typically taken in the morning. Approximate cost is $16 per month.
How strong is the evidence for Saw Palmetto Extract?
Moderate evidence for its primary uses. See the full study list on the research page.

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