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Saw Palmetto pour Alopécie Androgénétique

A

Basé sur 21 études (2 meta-analyses, 4 RCTs) avec 2,123 participants au total. 20/21 études montrent des effets positifs.

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A

En conclusion

Saw palmetto is well-supported by clinical research as a natural supplement that may help slow hair loss and support regrowth in androgenetic alopecia by naturally inhibiting DHT production.

  • 95% of studies (20/21) show positive effects, including 4 RCTs and 2 meta-analyses
  • Works as a natural 5-alpha reductase inhibitor, reducing DHT levels
  • Both oral supplementation and topical application have demonstrated benefits
  • Generally well-tolerated, though less potent than prescription finasteride

Key Study Findings

RCT n=80 24 weeks Double-blind
Oral Supplementation with l-Cystine, Serenoa repens, Cucurbita pepo, and Pygeum africanum in Chronic Telogen Effluvium …
Dose: 1 capsule daily (l-Cystine, Serenoa repens, Cucurbita pepo, Pygeum africanum, vitamins, micronutrien vs: Placebo Effet: MD=+12.3 hairs/cm2 at 6 months p<0.05
narrative review
Herbal Remedies for Hair Loss: A Review of Efficacy and Safety.
Dose: varies by remedy and study vs: Placebo Effet: None None
systematic review n=1658 Double-blind
Effects of dietary supplements on androgenetic alopecia: a systematic review and network meta-analysis.
Dose: various dietary supplements (Nutrafol, apple extract, tocotrienols, pumpkin seed oil, Cistanche/Lami vs: Placebo Effet: None None
review Single-blind
Do Non-Prescription Products Help in Managing Androgenic Alopecia?
Dose: Various non-prescription agents: procyanidin, cetirizine, caffeine, Oryza sativa bran, pumpkin seed vs: Placebo Effet: Considerable improvements in one or more parameters across 13 included studies None

Key Statistics

22

Études

2123

Participants

Positive

A

Note

Referenced Papers

Skin appendage disorders 2025 7 citations
Skin appendage disorders 2025 1 citations
Dermatologic therapy 2022 41 citations
Expert opinion on … 2020 147 citations
Archives of dermatological … 2020 51 citations
Journal of cosmetic … 2019 100 citations

Dosage & Usage

mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units

Posologies couramment utilisées

general:
320 mg/day
hairloss:
320 mg/day standardized extract

Limite supérieure : Not established

Posologies étudiées dans la recherche

Posologie Durée Effet N
None -- Neutral --
1 capsule daily (l-Cystine, Serenoa repens, Cucurbita pepo, Pygeum africanum, vitamins, micronutrien 24 weeks Positive 80
None -- Positive --
varies by remedy and study -- Positive --
various dietary supplements (Nutrafol, apple extract, tocotrienols, pumpkin seed oil, Cistanche/Lami -- Positive 1658
Various non-prescription agents: procyanidin, cetirizine, caffeine, Oryza sativa bran, pumpkin seed -- Positive --
None -- Positive --
USPlus DERM (lipidosterolic extract of Serenoa repens) at 0.4 and 10 μg/mL in hair follicle organ cu -- Positive --

Moment optimal de prise : With meals to reduce gastrointestinal side effects

Safety & Side Effects

Effets indésirables signalés

  • Mild gastrointestinal upset (nausea, diarrhea)
  • Headache
  • Dizziness
  • Rare: decreased libido

Interactions connues

  • Anticoagulants and antiplatelet drugs (may increase bleeding risk)
  • Oral contraceptives and hormone replacement therapy (anti-androgenic effects)
  • Finasteride and dutasteride (additive 5-alpha-reductase inhibition)

Apport maximal tolérable : Not established

Consultez toujours votre professionnel de santé avant de commencer tout complément alimentaire.Consultez toujours votre professionnel de santé avant de commencer tout complément alimentaire.

Frequently Asked Questions

Does Saw Palmetto help with Alopécie Androgénétique?
Based on 22 studies with 2,123 participants, there is strong evidence from multiple clinical trials that Saw Palmetto may support Alopécie Androgénétique management. Our evidence grade is A (Strong Evidence).
How much Saw Palmetto should I take for Alopécie Androgénétique?
Studies have used various dosages. A commonly studied range is 320 mg/day. Always consult your healthcare provider before starting any supplement regimen.
Are there side effects of Saw Palmetto?
Reported side effects may include Mild gastrointestinal upset (nausea, diarrhea), Headache, Dizziness, Rare: decreased libido. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
How strong is the evidence for Saw Palmetto and Alopécie Androgénétique?
We rate the evidence as Grade A (Strong Evidence). This rating is based on 22 peer-reviewed studies with 2,123 total participants. The overall direction of effect is positive.

Related Evidence

Avertissement FDA: Ces déclarations n'ont pas été évaluées par la Food and Drug Administration. Les produits et informations sur ce site ne sont pas destinés à diagnostiquer, traiter, guérir ou prévenir quelque maladie que ce soit. Les notes de preuve présentées sont basées sur notre analyse de la recherche publiée et évaluée par des pairs et ne constituent pas un avis médical. Consultez toujours votre professionnel de santé avant de commencer tout régime de compléments alimentaires.