Saw Palmetto Extract
saw pal-MET-oh
What Is Saw Palmetto Extract?
An extract from the berries of the saw palmetto plant, traditionally used for prostate health. In hair care, it is used as a natural DHT blocker to combat androgenetic hair loss.
Source: Saw palmetto berries (Serenoa repens)
Origin: Natural
Also known as: Serenoa Repens Extract, Sabal Serrulata Extract
What Does Saw Palmetto Extract Do to Your Hair?
Inhibits the enzyme 5-alpha-reductase that converts testosterone to DHT, the hormone primarily responsible for androgenetic alopecia. Helps reduce follicle miniaturization and may promote thicker hair growth over time.
Best For
Thinning hair, androgenetic alopecia, DHT-related hair loss
Not Recommended For
Pregnant/nursing women, hormone-sensitive conditions
Concentration Matters
0.5-5% in scalp products
Hair Type Compatibility
Method Compatibility
Safety & Regulation
Generally safe for topical use. Some evidence of mild hormonal effects so pregnant and nursing women should avoid. Oral supplements may interact with hormonal medications. Topical application is lower risk.
FDA Status: Generally Recognized As Safe
FDA considers safe as a dietary supplement and cosmetic ingredient. Not FDA-approved as a drug for hair loss.
EWG Score: 2/10
HairAide Verdict
A natural DHT-blocker with promising research. Not as potent as minoxidil but a good option for those wanting a plant-based approach to thinning hair. Best used consistently over several months.
Products That Contain Saw Palmetto Extract
Anti-hair-loss shampoos, scalp serums, growth supplements, topical treatments
Alternatives to Saw Palmetto Extract
If you want to avoid Saw Palmetto Extract, look for products with these ingredients instead:
Caffeine, Pumpkin Seed Oil, Minoxidil, Green Tea Extract
Frequently Asked Questions
Yes, Saw Palmetto Extract has a safety rating of 8/10 and is generally considered safe for use in hair products. Generally safe for topical use. Some evidence of mild hormonal effects so pregnant and nursing women should avoid. Oral supplements may interact with hormonal medications. Topical application is lower risk.
Saw Palmetto Extract is CG-method approved and is generally considered safe for curly hair.
Yes, Saw Palmetto Extract is approved for the Curly Girl method.
Some alternatives to Saw Palmetto Extract include: Caffeine, Pumpkin Seed Oil, Minoxidil, Green Tea Extract
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