What is the hair growth principle of scalp hair follicles?

The principle is: hair grows in scalp hair follicles, and each hair follicle grows hair, so we can see a hair. A healthy hair follicle can produce 3-4 hairs, and a damaged hair follicle can only produce 1-2 hairs, or even only one hair follicle. If the hair follicle dies, it can't grow hair. Therefore, if you want healthy hair, you must ensure the health of scalp hair follicles. At the same time, there are problems with hair, so pay attention to maintenance. If you are healthy, there will be no problem with your hair. You can use warm scalp care, which is specially maintained.