A fruit extract from the Serenoa repens palm that may reduce DHT-driven hair thinning
How Saw Palmetto can help, goal by goal, with the studies behind each score.
A 2023 placebo-controlled RCT (n=80, 16 weeks, industry-funded) found oral saw palmetto reduced hair fall by 29% and increased hair density by 5.17%, alongside reduced serum DHT; a 2020 systematic review of saw palmetto for hair loss found generally supportive but mixed-quality evidence.
Each score is for this supplement and that specific goal, not a general rating.
XP combines how reliable the research is with how much difference it usually makes. Higher means stronger evidence for that supplement and that goal.
What studies commonly use for Saw Palmetto, and how it is usually taken.
200–320 mg per day
200–320 mg/day of standardized extract
200–320 mg/day standardized to 85–95% fatty acids/sterols (the dose used in hair-loss trials)
Hair Loss & Thinning comes first (week 9 → month 4); Hair Loss & Thinning takes longest (week 9 → month 4). An estimate from the studies' timelines, not a promise: everyone responds differently.
From the first noticeable effect to roughly full strength. Colour follows the XP tier of each benefit.
These gains come from steady use, not a single dose. Keep Saw Palmetto in your routine for about month 4 before you judge it.
What to know before you take Saw Palmetto.
Use with care
Dose and timing matter.
Check with a doctor first if you are pregnant, breastfeeding, or take hormonal medications (including hormonal birth control or finasteride-type drugs).
General information, not medical advice. If you are pregnant, take medication or have a health condition, check with a doctor or pharmacist first.
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