research Human hair keratin gradient metallogel and their applications for wound healing May 2024 The research developed a human hair keratin and silver ion hydrogel that could help heal wounds.
research Improvement of androgenetic alopecia with topicalSophora flavescensAiton extract, and identification of the two active compounds in the extract that stimulate proliferation of human hair keratinocytes 11 citations , April 2016 in “Clinical and Experimental Dermatology” Sophora flavescens extract helps hair growth and treats hair loss.