The effect of photo hair removal is quite good is permanent, only destroy the hair follicle not destroy the sweat gland. The use of strong pulse light source selective principle, the use of hair follicles in the melanin for specific light absorption to cause the hair follicle to produce heat, so as to destroy the hair follicle, and then achieve the effect of hair removal is never to grow. Photoluminescence hair removal is not a one-time procedure, it usually takes five times to be a course of treatment, once every two months. Because there are hair growth period, resting period and regression period, the hair removal is mainly the hair of the growth period. There are some resting hair to be transformed into growth period after two months, so it takes more than two months to take off once, generally five times to take off almost. But it is not possible to take off to a hair, the last can still be left a little, but is very small pilose does not affect, away from the distance are not too out.