1.Is laser hair removal safe? Laser hair removal is a very safe hair removal method: targeted, no side effects on the human body, almost no effect on the skin. 2, do laser hair removal precautions Do laser hair removal should pay attention to, hair removal parts in the week before and two weeks after treatment sun protection, hair removal parts should not be plucking, wax hair removal and electrolysis hair removal two weeks before treatment. 3, laser hair removal need times Laser hair removal generally need three to six times, mainly two factors: First, most of the hair follicles are a group of three bundled together, opening in the same pore, a hair in the pore is in it below a group of three hair follicles in a hair follicle growth, so a treatment can only destroy a group of hair follicles; Second, hair growth to go through the anagen phase, regression phase, resting phase, in In the growth period of hair to do laser hair removal for 75% effective, degenerative period for 25%, rest period is almost invalid. 4, after laser hair removal will not affect sweating Laser hair removal laser only on the role of melanin in the hair follicle, and sweat glands and no melanin so will not absorb the laser ability and damage sweat glands, there is no other adverse effects on the human body. So laser hair removal will not affect sweating. 5, laser hair removal on the skin is not harmed human skin is a relatively light-transmitting structure, plastic beauty experts clinical experiments found that in front of the powerful laser, the skin is simply a transparent cellophane, so the laser can very smoothly through the skin deep into the hair follicle, because the hair follicle has a lot of melanin, so it can preferentially absorb a lot of laser energy and eventually converted into heat, so that the hair follicle temperature rise, to achieve the purpose of destroying the function of the hair follicle. This causes the hair follicle to increase in temperature, thus destroying the function of the hair follicle. In this process, the skin itself will not have any damage because the skin relatively does not absorb laser energy or absorbs a very small amount of laser energy. 6, whether the effect of laser hair removal is permanent For the effect of laser hair removal is able to permanently remove the hair, of course, in the hair growth period treatment effect is the best, the more melanin secretion, the better the effect of treatment. The more melanin is secreted, the better the effect of the treatment. The effect of laser hair removal on the hair in the regressive and resting phase is not much.