SHR is a new technology of permanent hair removal which is having a sweeping success. The working theory is heating the dermis to a target temperature gradually. At that target temperature, it damages the hair follicles and prevents re-growth effectively. Meanwhile avoiding injury to the surrounding tissue. A high repetition rate of single pulses are delivered deep into the dermis, achieving high average power and therapeutically effective heat build-up, without the risk of injury and no pain virtually