Permanent hair removal requires the destruction of the hair bulb located deep beneath the skin. For this application, lasers are becoming a popular alternative to electrolysis. This shift is occurring because lasers are noninvasive and the precision of the beam minimizes unnecessary damage to the surrounding skin, resulting in less pain and fewer side-effects. Lasers emit short pulses of infrared light that pass through the skin and primarily affect only the pigmented cells within the hair bulb. The heat from the laser permanently damages the cells, which prevents any further hair production.