Ice point hair removal, to be precise, is the collective name of ice point laser hair removal and ice point photon hair removal, which is based on laser hair removal and photon hair removal with the addition of cooling device head to enhance the comfort of treatment. It can reduce the burning sensation during hair removal and can cool the local epidermis to about 4 degrees Celsius, making the treatment process icy and comfortable and painless, which is the more widely used hair removal method nowadays. At present, this technology can make most of the hairs (more than 90%) removed, and the hairs that cannot be removed will become fine. Ice point hair removal requires several treatments to achieve the effect of long-lasting hair removal according to the individual’s specific situation, which is related to the number of times of hair removal and factors such as skin and hair type, and generally requires 3-5 treatments. In addition, the hair growth state has anagen phase, stationary phase and regression phase respectively, ice point hair removal is only more effective on those hair follicles in the anagen phase (high melanin content, target color base), while the regression phase and stationary phase hair follicles have little melanin content, the effect is not good, only when these hairs turn into the anagen phase, the laser can effectively destroy the hair follicles and achieve the hair removal effect. The common adverse reactions after surgery are pain, redness, and follicle edema phenomenon, which need to follow the medical advice properly for related care to achieve the ideal hair removal effect.