15 citations
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May 2020 in “BMC complementary medicine and therapies” This study found that Polygonum multiflorum extract may promote hair growth by increasing anagen duration and activating dermal papilla cells in human hair follicles, as observed in cultured cell models.
5 citations
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January 2021 in “Biomedicine & Pharmacotherapy” This study suggests that policosanol may prevent androgenetic alopecia in mice by regulating hormone levels and suppressing premature hair follicle entry into the regression phase.
52 citations
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May 2015 in “PLOS Genetics” This study found that the microRNA miR-22 is a key regulator of the hair cycle, influencing hair loss by promoting the transition from growth to rest phases and repressing keratinocyte differentiation.
July 2021 in “IntechOpen eBooks” This review discusses the potential of ginseng and its metabolites for treating hair loss and reports no new clinical findings.
173 citations
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September 2011 in “Journal of Investigative Dermatology” IL-6 contributes to hair loss by shortening the growth phase and causing hair follicles to regress.