The Candela Alexandrite laser system is considered the most effective solution to the problem of unwanted hair growth worldwide. The monochromatic light beam is absorbed exclusively by the hair melanin (selective photothermolysis). Through the hair, which acts as a conduit, the energy is channeled into its sac. There the light energy is converted into thermal energy. The temperature rises, resulting in the destruction of the regenerative cells of the hair, without damaging the adjacent tissues.