1. Pomegranate dyeing: Grind sour pomegranate and gallnut into coarse powder, and put it in an iron vessel and soak it in water. After a week, take the juice and apply it to your hair, which has the effect of blackening your hair.

2. Pomegranate peel prescription: decoct Galla Chinensis, Gan Song Bletilla striata powder, persimmon leaves and indigo naturalis in water for concentration, remove residues and store juice, and apply the medicine juice to white hair with a brush once every other day. You can dye white hair into black hair.