The 808nm Diode Laser Machine emits 808nm high-energy continuous laser. The laser is particularly sensitive to hair follicle melanocytes, but does not damage the normal epidermis. It directly acts on the hair follicle melanin to produce a photothermal effect, and the hair follicle is heated to 45-50 degrees Celsius. Maintaining for a period of time can achieve the destruction of hair follicles and their stem cells, and achieve the purpose of permanent hair removal.