With SHR technology, 4-8 treatments are usually sufficient. Repeating the treatment is necessary because only 12-15% of the hairs in the body grow. Only the hairs that are in the growth phase (anagen phase) are optimally treatable, as only these hairs have a connection to the hair papilla, the area that is destroyed by denaturation during the treatment, in order to prevent the hair from growing back. The remaining hair follicles are located under the skin in a resting state and can therefore only be removed permanently in later treatments. An exact number of treatments necessary for permanent hair removal cannot be predicted in advance, as everyone has different treatment requirements.