Lip hair can usually be removed permanently by laser, but it requires several treatments. At present, the way to completely remove lip hair is laser treatment, the principle is mainly based on selective photothermal effect, acting on the skin, penetrating the skin to reach the root of the hair follicle, can destroy the hair follicle, so as to achieve the effect of permanent hair removal. However, due to the growth of hair has a certain cycle, so a one-time hair removal is not able to completely remove, there may still be new lip hair grows out, generally after 3 to 5 times of treatment, can be permanently removed. Lip hair with laser treatment, be sure to choose a formal institution, to avoid damage due to improper operation, in the laser treatment, go out to do a good job of sunscreen measures, to avoid leading to lip melanin deposits.