Laser Their are a lot of benifits to laser. First of all, laser hair removal is precise. The laser only targets pigmented areas on the skin, such as the hair follicle. This is why only the hair follicle is burned and not the skin surrounding the area.How does laser hair removal work? The hair on our body grows in three stages: anagen, telogen and catagen. Laser hair removal is most effective on the hairs in the early part of the anagen stage, when hair is actively growing. A concentrated beam of light (the laser) is aimed at the hair follicle. The laser than converts its energy into heat, heats up the hair follicle and prevents that follicle from growing any further.