Photofacial, also known as photorejuvenation, is another name for IPL therapy that uses intense pulsed light to treat the skin. Patients are given protective eyewear to serve as protection from the bright flashes of light. A cool gel is also often applied to the treatment area to lubricate the handpiece and to help cool the epidermis. Brief pulses of bright light will be applied to the skin through the handpiece. This causes collagen and blood vessels below the epidermis to constrict. The number of pulses received depends on the size of the area being treated.