Most patients need between 5 and 10 effective treatments spaced a minimum of 8 weeks apart. Because hair grows in cycles, several sessions are necessary in order to affect all hair on any given area. Treatments are scheduled based on the average length of hair growth cycles, usually once every 8-10 weeks. Hair cycle length varies depending on the body part. The face usually has a shorter treatment cycle and therefore more frequent treatments (about 8 weeks apart) whereas legs and back need less frequent treatments (closer to 10-12 weeks apart). All of the treated hair should be expected to shed out within 3 weeks of each treatment. During the shedding phase, hair may look like itís growing, but it is actually shedding out. Exfoliating and/or scrubbing gently in the shower with a loofa can help speed up the shedding process. In rare cases, hair that doesnít shed and is growing as usual after 3 weeks may not have been in the growth phase at the time of treatment and therefore have not been affected during the treatment. In any case, please inform your True Laser specialist at the time of your next treatment of any areas of hair that you feel were not affected so that they can adjust the settings if necessary. All 5 to 10 treatments should be good effective treatments at aggressive settings in order to achieve permanent results. Once the hair sheds; you will experience a hair-free period for several weeks. Once new hair comes in again, usually within the 8-10 week interval, you should come in for your next session. All 5 to 10 treatments should be good effective treatments at aggressive settings in order to achieve permanent results. Once the hair sheds; you will experience a hair-free period for several weeks. Once new hair comes in again, usually within the 8-10 week interval, you should come in for your next session.