Laser hair removal is a medical procedure that uses a laser or an intense, pulsed light (IPL) to deliver energy to an individual hair follicle. This energy damages the hair follicle, which inhibits future hair growth.
Laser hair removal is most effective for people who have light skin and dark hair. White and gray hair does not respond. This is due to the fact that it is the pigment in the hair that absorbs the energy and transfers it to the hair follicle. It typically takes 4-6 laser hair removal treatments to provide permanent hair reduction. Periodic maintenance treatments may be needed as well.