Hair color graying is recommended to give treatment to nourish the kidney and blood. If hair color graying occurs in middle age, it is mostly related to the gradual decay of kidney qi with age. If you wish to grow black hair again, you can give food and medicine to nourish kidney qi. Food can have animal kidney, mulberry, black sesame, black fungus, etc.; medicine can choose Jin Kui kidney qi pill, or decoction fried yam, shamrock, poria, zedoary, wolfberry, peony skin, rehmannia, etc. If the condition of white hair color occurs even in adolescence, accompanied by frequent dizziness and pale face, etc. It is recommended to give treatment to nourish Yin and Blood by taking Siwu Tang, Bazhen Tang, etc., or decoction of Dang Ginseng, Radix Angelicae Sinensis, Chuanxiong, Shu Di, Paeoniae, etc. Frequent use of chemical hair dyes or long-term oral intake of He Shou Wu is not recommended.