Stay out of the sun. A tan increases the risk of side effects, such as skin lightening. If you have a tan — either from sun exposure or sunless tanning products — wait until the tan fades completely before undergoing laser hair removal. Some doctors recommend staying out of the sun for up to six weeks before laser hair removal. Avoid plucking, waxing, and electrolysis. These hair removal methods can disturb the hair follicle and interfere with laser hair removal. Shaving is OK, however, since it preserves the hair shaft and follicle. In fact, shaving might even be recommended. Some studies suggest that shaving before laser hair removal improves results.