When it comes to hair removal or depilation, a distinction is made between temporary (depilation) and permanent (epilation) hair removal. Permanent or permanent hair removal has been defined by the FDA (Food and Drug Administration USA) as „significant hair reduction for a period of time longer than one hair cycle in the corresponding body region“. From our own experience, we have a high success rate for permanent hair removal ¹. However, in exceptional cases, the treatment cannot lead to the desired result of durability. From a medical point of view, one of the main problems with permanent hair removal ¹ is when, for example, the hair to be treated is light and not pigmented. This is mostly the case with light blonde, white, gray and red hair. Another example of the frequent inefficiency of permanent hair removal treatments is shown in the clinical picture „hirsutism“. People with this disease usually suffer from above-average hair growth, which can also be successfully treated. Hormonal changes in the body can also mean that hair can continue to grow even after the treatment has been completed. hairfree works with above-average success and has a high level of customer satisfaction.