The Metamorphosis GentleLase System for laser hair removal is a revolutionary long-pulse high-energy alexandrite laser, which emits a gentle beam of light that passes through the skin to the hair follicle where it is absorbed. The laser energy is transformed into heat, which destroys the hair follicle leaving the surrounding skin undamaged. A Dynamic Cooling Device further protects the skin from the laser. Cryogen is sprayed onto the skin, cooling the upper layers and providing increased comfort. The GentleLase selectivity helps to protect the skin, while safely and effectively treating the unwanted hair. * Please note that all laser machines are not built from the same technology. If you have been dissatisfied with other laser hair removal treatments in the past, give Metamorphosis a try. It is truly the ultimate in laser hair removal technology.