Usually, the best time to wash your hair is between 7pm and 10pm. Normal people in the evening from 10:00 pm to 2:00 am, is the regeneration period and active period of scalp cells, before this 3 hours to wash hair, is conducive to hair growth, but also can protect the skin of the head. When washing your hair, use your hands to gently massage your scalp, do not scratch hard, not only to promote blood circulation in the head, but also to relieve scalp discomfort, relaxation and help you sleep. When washing your hair, you can use warm water between 37°C and 45°C to wash, which can avoid stimulation of the scalp. The temperature is too high to scald the scalp, and too low to catch a cold and cause a cold. After washing your hair, it is best to dry it with a towel or use a hair dryer to avoid prolonged retention of moisture in the scalp area and affect skin health.