Intense Pulsed Light (IPL) uses flashlamps to produce high intensity light over broad visible and infrared wavelengths with filters that select the desired range. IPL is used to treat dyschromia, rosacea, melasma, acne, photodamage, vascular and pigmented lesions, and rhytides.
Beginning in the late 1990s, a number of studies have been performed to evaluate the safety and effectiveness of IPL on wrinkle-removal and rejuvenation of the skin. One such study conducted by a group of four researchers from the Weill Cornell Medical College of Cornell University in 2004 found IPL to be a "non-invasive, non-ablative method for rejuvenating photoaged skin with minimal adverse events".
Studies have noted that exposing cells to direct heat can cause DNA damage not only in those cells but also in surrounding tissue that was not directly exposed, and concluded treatments can cause microscopic thermal injuries and that further research is warranted.
IPL has become a popular treatment and is effective for pigmentation and telangiectasias, but has lesser results for wrinkles. The procedure is quick, safe and well tolerated.