Hair removal machine
Principle of selective photopyrolysis: a certain wavelength of laser passes through the epidermis and enters the dermis. It is selectively absorbed by the melanin particles in the hair and hair follicles. The light energy absorption is converted into the heat energy that destroys the hair follicles, resulting in photothermal effect. The heat energy in the hair is transmitted to the surrounding, completely destroying the hair roots such as hair follicles and stem cells, so that the hair loses its regeneration ability and permanently depilates.