Laser Hair Reduction is the process of hair removal by means of exposure to pulses of laser light that destroy the hair follicular melanin.
Lasers cause localized damage by selectively heating melanin which is present in the hair follicles, while not heating the rest of the skin.
Hair removal lasers have been in the market since 1997 and have been approved for "permanent hair reduction" in the United States by the Food and Drug Administration (FDA). Under the FDA's definition, "permanent" hair reduction is a long-term, stable reduction in the number of hairs regrowing after a treatment regime.
The results may vary from one patient to the other and also from one operator to the other. The selection of the machine and setting up of various laser parameters depending on the patient play a major role in the final outcome of the procedure.
Advancement in technology may soon find newer treatment modalities and how effective will these be in future, only time can tell.