What is the standard of hair health?

Generally speaking, a standard healthy hair has the following conditions:

1. Hair shaft is normal and there is no abnormal hair loss;

2. The hair is clean and there is no dandruff;

3. The hair surface is smooth, the hair color is shiny, and the hair is elastic;

4. Uniform thickness and neutral hair

If you want to keep your hair healthy, you'd better not dye it frequently. You can usually use some ginger shampoo to warm your scalp.