Eriodictyon angustifolium extract, but not Eriodictyon californicum extract, reduces human hair greying

摘要

Objective Yerba Santa (Eriodictyon angustifolium and Eriodictyon californicum) has been used for many years in traditional medicine. However, the effect of Yerba Santa on melanogenesis has not yet been investigated. We aimed to assess the biological effects of Yerba Santa on hair pigmentation.