Ancient herb offers multi-pathway potential for hair regrowth

A review suggests Polygonum multiflorum, a traditional Chinese medicinal root, may help androgenetic alopecia by acting on multiple pathways—reducing DHT effects, protecting follicles from damage, activating growth signals such as Wnt and Shh, and improving scalp blood flow—offering a potential alternative to current meds, though more high-quality clinical trials are needed to confirm safety and optimal use.