research Bioinspired engineering of Polygonum multiflorum root nanovesicles regulates dermal papilla cells in vitro and stimulates human hair follicle growth ex vivo
This study evaluated nanovesicles derived from Polygonum multiflorum roots, finding that they promote dermal papilla cell proliferation and activate β-catenin signaling, which in turn enhances hair shaft elongation in ex vivo cultured human hair follicles, suggesting their potential use for alopecia treatment.

