Intense pulsed light or IPL, is a continuous, multi-wavelength incoherent light source with wavelength ranges from 500nm to 1200nm. IPL can produce intense heat and be used for various treatments under the principle of selective pyrolyzation. Generally speaking, the following two effects occur when an intense pulsed light irradiates the skin.
① Biologic stimulation effect
The intense heat of the light changes the molecule structure inside collagen fiber in the dermis and inside elastic fiber, promoting the original resilience to be restored. It also helps improve circulation.
Since the pathological tissues contain much higher content of pigment groups than normal skin tissues, the temperature of pigment groups after absorbing light is rising at a higher speed than that of normal skin. Using the temperature difference, pigments can be broken down and decomposed to achieve the desired therapeutic purposes of rosacea removal, pigment removal and so on without damaging normal tissue.