Due to racial differences, most women in western countries have heavy body hair, so it is an indispensable part of their daily beauty to accept and attach importance to body hair removal earlier. For women in Muslim countries, hair removal has become a religious requirement; In Chinese mainland, the concept of hair removal has just been accepted by everyone. According to the survey, with the improvement of education level between cities and the improvement of people's income and consumption level, more and more female consumers will join the consumption ranks of hair removal products. People are increasingly aware that hair removal represents fashion, culture and etiquette. Smooth skin makes people more confident. Whenever and wherever, we can raise our arms and wear short skirts and sleeveless shirts without embarrassment. Make you feel more comfortable and have a more elegant and capable image. In order to get twice the result with half the effort, the following preparations cannot be ignored: 1. Try to avoid sunlight before hair removal, and it is best to use sunscreen when going out. For those who have received ultraviolet radiation, it is recommended to do ice laser hair removal for a period of time. 2. Do not use depilatory, wax therapy and other depilatory methods within one week before using ice laser for hair removal. 3. The skin must be prepared before ice laser hair removal, and the hair in the hair removal area must be scraped clean. 4, generally do not need anesthesia before hair removal, patients who are sensitive to pain can use topical anesthesia. In addition, before laser hair removal, it is necessary to protect the hair removal site from skin trauma, that is to say, there can be no infected lesions in the hair removal site before laser hair removal can be carried out.