Pumpkin Seed Oil for Androgenetic Alopecia
ABased on 15 studies (2 meta-analyses, 3 RCTs) with 1,874 total participants. 13/15 studies show positive effects.
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A
The Bottom Line
Pumpkin seed oil is well-supported by multiple clinical trials as a natural supplement that may help promote hair growth in androgenetic alopecia through its DHT-blocking properties.
- 13 out of 14 studies show positive effects, including 3 RCTs
- Acts as a natural 5-alpha reductase inhibitor, potentially reducing DHT levels
- Both oral supplementation and topical application have been studied
- One RCT showed comparable results to minoxidil 5% in women
Key Study Findings
narrative review
Addressing the Root Causes of Female Hair Loss and Non-Pharmaceutical Interventions.
Dose: None
vs: Placebo
Effect: None
None
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
Effect: 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
Effect: 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
Effect: 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
Effect: Considerable improvements in one or more parameters across 13 included studies
None
review
Emerging and traditional 5-α reductase inhibitors and androgen receptor antagonists for male androgenetic alopecia.
Dose: finasteride 1 mg/day; dutasteride 0.5 mg/day; various natural product doses
vs: Placebo
Effect: None
None
Key Statistics
15
Studies
1874
Participants
↑
Positive
A
Grade
Referenced Papers
Skin appendage disorders
2025
7 citations
Skin appendage disorders
2025
3 citations
Skin appendage disorders
2025
1 citations
Journal of drugs …
2025
Effects of dietary supplements on androgenetic alopecia: a systematic review and network meta-analysis.
Systematic Review
Frontiers in nutrition
2025
Proceedings (Baylor University. …
2024
14 citations
Expert opinion on …
2024
8 citations
Clinical, cosmetic and …
2024
7 citations
Dermatologic therapy
2022
41 citations
Journal of cosmetic …
2021
29 citations
Archives of dermatological …
2020
51 citations
The Journal of …
2020
24 citations
Journal of cosmetic …
2019
100 citations
Beneficial effects of pumpkin seed oil as a topical hair growth promoting agent in a mice model.
Other
Avicenna journal of …
2019
23 citations
Evidence-based complementary and …
2015
4 citations
Evidence-based complementary and …
2014
86 citations
Dosage & Usage
mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units
Commonly Used Dosages
- hairloss:
- 400 mg/day
Upper limit: Not established
Dosages Studied in Research
| Dosage | Duration | Effect | N |
|---|---|---|---|
| None | -- | Positive | -- |
| 1 capsule daily (l-Cystine, Serenoa repens, Cucurbita pepo, Pygeum africanum, vitamins, micronutrien | 24 weeks | Positive | 80 |
| 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 | -- |
| finasteride 1 mg/day; dutasteride 0.5 mg/day; various natural product doses | -- | Positive | -- |
| various CAMs: pumpkin seed oil, saw palmetto, melatonin extract, caffeine extract, rosemary oil | -- | Positive | -- |
| not specified | -- | Positive | -- |
Best taken: With meals for better absorption
Safety & Side Effects
Reported Side Effects
- ⚠ Mild gastrointestinal upset
- ⚠ Possible stomach discomfort at high doses
- ⚠ Rare allergic reactions in individuals with cucurbit allergies
Known Interactions
- ● Anticoagulants (theoretical increased bleeding risk)
- ● Lithium (pumpkin seed oil may have diuretic properties)
Tolerable upper intake: Not established
Always consult your healthcare provider before starting any supplement.
Frequently Asked Questions
Does Pumpkin Seed Oil help with Androgenetic Alopecia?
Based on 15 studies with 1,874 participants, there is strong evidence from multiple clinical trials that Pumpkin Seed Oil may support Androgenetic Alopecia management. Our evidence grade is A (Strong Evidence).
How much Pumpkin Seed Oil should I take for Androgenetic Alopecia?
Studies have used various dosages. A commonly studied range is 400 mg/day. Always consult your healthcare provider before starting any supplement regimen.
Are there side effects of Pumpkin Seed Oil?
Reported side effects may include Mild gastrointestinal upset, Possible stomach discomfort at high doses, Rare allergic reactions in individuals with cucurbit allergies. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
How strong is the evidence for Pumpkin Seed Oil and Androgenetic Alopecia?
We rate the evidence as Grade A (Strong Evidence). This rating is based on 15 peer-reviewed studies with 1,874 total participants. The overall direction of effect is positive.
Related Evidence
Other ingredients for Androgenetic Alopecia
FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. The products and information on this website are not intended to diagnose, treat, cure, or prevent any disease. The evidence grades presented are based on our analysis of published peer-reviewed research and do not constitute medical advice. Always consult your healthcare provider before starting any supplement regimen.