Laser hair removal is achieved by acting on the skin surface through a complex optical fiber transmission system and then destroying hair follicles. Hair follicle growth can be divided into growth period, rest period and regression period, and melanin is the most in the growing hair follicle. Laser energy is selectively absorbed by melanin in hair follicles and converted into heat energy to destroy hair follicles. The more melanin, the more obvious depilation effect.
If you want to completely solve the problem of arm hair, it is best to depilate it at regular intervals according to the doctor's advice, so that after repeated depilation, the trouble of arm hair will never happen again.