You should shave the area to be treated 1-3 days before treatment. No waxing, tweezing or threading is allowed 4-6 weeks before and throughout the course of treatment as hair needs to be in place to be targeted by laser. The area should be shaved as closely as possible so that laser can target the most energy towards the hair follicle and not waste energy on the part of the hair above the skin’s surface. If your hair is the type that you can’t see where it was right after you shave, shave 1-3 days before so the outline of where hair is growing is just VERY slightly visible.