Pumpkin Seed Extract for Hair Health

Research suggests that pumpkin seed oil and extract show consistent promise for supporting hair health, particularly in the context of androgenetic alopecia in both men and women, with proposed mechanisms including inhibition of 5-alpha-reductase, antioxidant activity, and anti-inflammatory effects. The evidence base includes a notable 2014 randomized controlled trial reporting meaningful increases in hair count among men with pattern hair loss, a 2021 RCT comparing pumpkin seed oil to minoxidil for female pattern hair loss, a 2025 multicenter RCT evaluating it as an adjunct to standard pharmacological treatment, and a growing number of supportive systematic reviews and narrative reviews published between 2020 and 2025. Animal and laboratory studies additionally suggest a potentially favorable safety profile compared to some conventional treatments, and a 2022 clinical study found that niosome-encapsulated topical delivery reduced hair shedding and improved follicle activity metrics over eight weeks. However, reviewers consistently note that the overall body of evidence is limited by small sample sizes, variable study designs, insufficient comparison to established treatments, and potential conflicts of interest, and multiple reviews conclude that further well-designed research is needed before definitive conclusions can be drawn.