11 citations,
November 2022 in “JAMA dermatology” Some nutritional supplements may help treat hair loss with generally mild side effects.
3 citations,
January 2017 in “Journal of cosmetology & trichology” The food supplement with L-cystine, Serenoa repens extract, and biotin safely reduced hair loss and improved hair growth in men and women.
8 citations,
January 2020 in “Skin appendage disorders” Saw palmetto supplements may modestly improve hair regrowth with few side effects, but more research is needed.
July 2024 in “Skin Appendage Disorders” The supplement significantly improves hair density and appearance in people with hair loss.