Limited evidence. One small trial found oral pumpkin seed oil increased hair count in men over 6 months, but it's a single study. A low-risk supplement option with weak supporting data.
Limited evidence — one small 6-month trial showed more hair count with oral pumpkin seed oil, but it stands largely alone.
A 2014 trial gave men with pattern loss 400 mg of pumpkin seed oil daily and reported a roughly 40% increase in hair count versus placebo over 24 weeks. It's an encouraging result, but a single, smallish study, and pumpkin seed oil's proposed anti-androgen mechanism isn't well established. No large or repeated trials have confirmed it.
Bottom line: oral pumpkin seed oil is low-risk and could be a mild add-on, particularly for people seeking a supplement-based route, but the evidence is too thin to rely on it alone. Pair it with proven treatments for meaningful loss and reassess at 6 months.
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FAQ
How much pumpkin seed oil for hair?
The main study used 400 mg of oral pumpkin seed oil daily for 24 weeks. As with any supplement, talk to a doctor, and don't expect it to match proven treatments on its own.
Does topical pumpkin seed oil work?
The supporting trial used the oral form; topical pumpkin seed oil is far less studied. There's currently no good evidence that applying it to the scalp regrows hair.
Explore more
⚠️ When to see a doctor — don’t self-treat
- Sudden patchy or circular bald spots
- Redness, scaling, pus, pain or itch (possible scarring alopecia — treat urgently)
- Broken hairs or rapid loss
- Loss with body-wide signs (weight loss, fatigue, cycle changes, acne, extra hair)
- Loss right after a new medication
- Any hair loss in a child