Can fo-ti preserve natural hair color?

Yes, it might. Fo-ti (polygonum multiflorum) has long been used to help promote hair regrowth and reduce grey hair. According to research, fo-ti has a positive impact on gray hair, helping to maintain an individual's natural hair color and also delaying the onset of new gray hairs. The herb contains tonics that can significantly darken the hair by promoting the cells that initiate the regeneration of new hair follicles.