IPL is intense pulse light. A broad spectrum of light is transmitted through a smooth and transparent lamp which is gently placed over the skin. Filters in the hand piece change the wavelength range allowing it to be optimized for different applications and skin types. The light penetrates the tissue and is absorbed by targeted tissue and damage the targeted tissue. The light can also activates fibroblast to produce new collagen and elastic fibers, consequently smoothes skin and returns elasticity.