It is not clear whether rice water has the effect of producing black hair. However, patients with prematurely gray hair can take medication to achieve black hair, such as hair pills. However, the medication should be taken under the supervision of a doctor. Hair Pills, composed of rhizome of the earth, the preparation of he shouwu, ink dry lotus, chasteberry (wine steamed), black sesame seeds, black beans (slightly fried). It has the effect of nourishing Yin and strengthening brain, cooling blood and wiping out hair. It is used for juvenile alopecia. Avoid spicy food while taking Wu Fa Pill. It is not suitable for patients with cold and flu. Take according to the dosage, children and pregnant women should be taken under the guidance of a physician. It should be noted that it is recommended that patients with premature whitening of the beard and hair go to the hospital as soon as possible, under the guidance of the doctor for standardized treatment.