Laser diode hair removal works by targeting the melanin in the hair follicles absorb the laser’s heat, destroying the follicle. Hair growth has 3 different stages: anagen, catagen, and resting. During the anagen phase, hair follicles produce and transport a large amount of melanin, making laser damage most effective. In the catagen and resting phase, melanin-related metabolism stops, so the laser treatment is less effective. Therefore, depending on the hair growth cycle, laser hair removal typically requires 6 to 10 or more treatments to achieve permanent results!