Leg hair should be about ¼ to ½ inch long before waxing. Coarse hair should be closer to ½ inch long before waxing, while fine hair can be waxed at ¼ inch. If the hair is longer, it is better to shave and wait until it grows back before waxing.
Once a waxing regimen is started, it is good to get the hair waxed every four weeks. If the hair is waxed every four weeks, the skin becomes less sensitive and the hair grows back finer and slower over time. The hair becomes less coarse over time. Shaving between waxing appointments can stimulate increased hair growth.