Each laser hair removal treatment will result in a hair growth reduction. Additionally, hair will grow progressively slower, lighter, and finer with each treatment. It takes more than one treatment to affect all the follicles growing in an area. Many people achieve satisfactory clearance after few treatments, but individual results may vary depending on medical and genetic factors. Lighter colored hair may require more treatments than darker colored hair. At the end of your protocol, the desired outcome is 80% to 100% clearance in the treated area.