How it works IPL (Intense Pulsed Light) is a kind of light with high energy and broad wavelength, within the range from 530nm to 1200nm. According to the principle of IPL photorejuvenation technology, intense pulsed light with broad spectrum affects pigmentations, broken capillary vessels and hair follicles. Photothermic and photochemical action will be triggered by the radiation of IPL, pigments is shattered and eliminated out of body by metabolism. Meanwhile, IPL will also give a boost to collagen[...]