Pumpkin Seed Oil for Hair Health

Research suggests that pumpkin seed oil may support hair growth and density through several proposed mechanisms, including inhibition of 5α-reductase, antioxidant activity, and anti-inflammatory effects, with the most direct clinical support coming from a 2025 systematic review and network meta-analysis of 19 randomized controlled trials that found pumpkin seed oil supplementation produced statistically significant improvements in hair density compared to placebo. Animal research and formulation studies add preliminary supporting evidence, with one mouse study suggesting a potentially more favorable safety profile compared to minoxidil and finasteride, though such findings cannot be directly applied to humans. However, a separate 2025 review taking a broader look at topical hair growth ingredients cautioned that the overall evidence base for ingredients in this category — including pumpkin seed oil — is limited by small sample sizes, inconsistent study designs, and potential conflicts of interest, and that marketing claims often outpace the science. Studies indicate that pumpkin seed oil holds genuine promise as an adjunct approach for hair loss, but researchers across multiple reviews consistently call for larger, more rigorously designed trials before firm conclusions can be drawn.