If the laser is done on upper lip, chin or any area on the face it should be spaced out 4-6 weeks apart. For the body areas, it should be repeated every 8-10 weeks. Facial hair grows faster than lower body hair and it should be done more often. In order for the laser to be effective, you should try to keep up... more







156 posts
17 Nov 2008
The length of time between laser hair reduction treatments should be based upon the hair growth cycle. Because each part of the body has a different cycle, our protocols are based upon which area we are treating. For example, treatments for the face are spaced 6 weeks apart whereas treatment for the legs is at 8 week intervals. It would be perfectly safe to treat sooner than these times; however, by waiting the recommended time to allow for more hair to grow into the anagen phase, the better success rate one will have with each treatment. Ideally, this will lead to less treatments (less money) with overall better outcomes - a win-win for patients. There is still a window of opportunity on either side of the recommended waiting period for potential efficacy, and patient compliance with the treatment schedule is an important factor. This may account for the varying time frames provided. L. Haney, RN, MEP-C Certified Medical Laser Safety Officer
92 posts
19 Nov 2008
In our office, 4 weeks seems to work well for underarms and female bikini. Leg treatments are usually done at 6-8 week intervals, and male back for example at 8 weeks. The timing can be moved up or slowed down by the hair growth returning sooner or later. Generally 6 treatments are required to meet the FDA definition of permant hair reduction.