How does LHR treatment work? At Laser Hair Removal of Virginia, we believe that the Cutera CoolGlide system is the most advanced laser hair removal technology available. The CoolGlide laser delivers long pulses of laser light through an actively cooled handpiece which cools the skin prior to lasering. This added protection is designed to protect the outer layers of the skin to prevent damage or thermal injury from the laser beam. The laser delivers quick pulses of light that are safely absorbed by the melanin (pigment/color) in your hair follicle. The light is converted to heat energy which reaches the root of the follicle and disables it preventing future hair growth while leaving the surrounding skin unchanged. Treatments can take from 5 to 20 minutes on small areas or longer for legs, backs and other large areas.