Hair loss can be divided into two categories. One is irreversible hair loss, which is manifested as diffuse hair loss on the top of the head. The scalp can be clearly seen, and the hair becomes thinner, but there will be no obvious baldness. 95% of this kind of trouble is genetic; the second is temporary hair loss, which is caused by many reasons and can be restored to a healthy state through targeted care. It should be said that most people's hair loss crisis belongs to the second type, and the most common ones are as follows:

1. Malnutrition

2. Excessive dyeing and perming

3. Stress and fatigue

4. Seasonal changes

5. Improper cleaning