Hair removal laser is harmless and has no side effects. First of all, its energy is small, but it will have a slight tingling in the process of doing it. This is a normal phenomenon. It will be fine after cold compress. After finishing, there will be some precautions. When it grows, it grows, but the long hair is thinner than before, which does not affect your beauty. The growth of hair varies from person to person, and everyone grows different hair.