Suggestion: Laser hair removal is an ideal hair removal method with high safety. Laser hair removal will not damage healthy skin, but only work on hair follicles. The thicker the hair, the longer the laser action time. The laser pulse time of semiconductor hair removal laser is from 5 milliseconds to 100 milliseconds, which can obtain ideal hair removal effect and effectively protect epidermis from thermal damage. The principle of laser hair removal under the armpit: the pigment in the hair follicle will absorb the energy of the laser and destroy the hair follicle through the generated heat exchange, so that the hair will stop growing. Laser hair removal is also a permanent hair removal method.