The lower segment of hair follicle (stem and bulb) is the center of hair growth, which is mainly composed of mature hair cells, including a small number of melanocytes. Hair mother cells are directly affected by hair induction factors and constantly divide to produce new hair cells. Once the immune system is confused, the hair induction factor commands “ malfunction ” The hair cells will be “ Rest ” At this time, even adequate nutrition will not help. If you want to regenerate hair, you must activate hair mother cells, make them divide again, produce new hair cells and form new hair.