The 808nm laser emitted by the laser hair remover can easily be absorbed by the colored hair follicles without damaging the epidermis. The energy emitted by the light is absorbed by the hair and the pigment in the hair follicles and then converted into heat. Therefore, the temperature of the hair follicles is increased. When the temperature rises to a certain extent, the hair follicles will be irreversibly damaged. After a period of time, the damaged hair follicles will be removed with the metabolism of the body, so as to achieve permanent hair removal.