How does the laser remove hair?
The laser emits a very specific light beam that is absorbed by the pigment located in the hair follicle. The laser is pulsed, turned on, for a fraction of second. The duration of the pulses have been carefully determined so that enough energy is absorbed by the hair follicle to disable it but not so much that excess heat is transferred to the surrounding skin. The result is safe and effective hair removal.
The laser works by a principle called Selective Photothermolysis. The laser is pulsed (turned on) for a millisecond emitting a beam of light on to the skin. The light energy passes harmlessly through the skin, but is absorbed by the pigment in the hair follicle and hair shaft. By absorbing this laser energy, the hair follicles are disabled, impairing their ability to grow. The laser is effective on hair follicles in the active growth phase (anagen).