IPL (Intense Pulse Light) is a kind of high strength, broad spectrum and non-succession light, which can permeate epidermis to the derma. Utilizing the selective absorption elements, the light is absorbed by the melanin in the hair follicles. Through the optical and thermal effect generated and sourced from the light, it achieves the purpose of removing unexpected hair by destroying the hair follicles tissues rapidly and permanently. IPL can permeate the epidermis to the derma and take effect on the exceptional pigment and vessel such target tissue to break the abnormal pigment cells, close the abnormal blood vessels, stimulate the proliferation of collagen and improve the rearrangement of elastic fiber, finally achieving the purpose of pigment removal and skin rejuvenation.