IPL uses a high-output flashlamp, which is essentially, a very bright flashbulb, to produce a broad wavelength output of noncoherent light that is directed towards the end of a handheld device, releasing energy pulses onto the skin’s surface. The light energy is then absorbed by the melanin pigment , which results in thermal injury to the follicles of actively growing hairs in the Anagen Phase . When hair is targeted and destroyed in this growth phase, the follicle itself is also destroyed and is no longer capable of producing future hair