The IPL device features a flashlamp that produces non-coherent, polychromatic light. Providers can adjust the light to a variety of wavelengths, fluences and pulse durations, Dr. Pozner writes.
Like a laser, IPL light results in selective photothermolysis.
Doctors and other providers usually apply a gel to the skin as an optical and thermal coupler; then, apply the device’s light topically through a rectangular light guide or crystal. While the crystal allows providers to treat a large area, they also can use adapters for smaller areas, according to Dr. Pozner.