91 citations,
April 2011 in “Journal of Ethnopharmacology” Polygonum multiflorum extract helps grow hair by activating certain hair growth signals in mice.
51 citations,
July 2013 in “Bioorganic & Medicinal Chemistry Letters” Compounds from Polygonum multiflorum root, especially a new one, can boost hair growth more effectively than common treatments.
15 citations,
May 2020 in “BMC complementary medicine and therapies” Polygonum multiflorum extract helps hair grow longer and fights the effects of hormones that cause hair loss.
12 citations,
April 2016 in “Chinese Medicine” The research identified 12 antioxidant compounds in Polygonum multiflorum roots, suggesting these as quality markers for the plant's processed roots.
October 2017 in “The American journal of gastroenterology” Taking He Shou Wu (Polygonum multiflorum) caused liver injury in a woman using it for hair loss.