How do lasers and intense pulsed light sources remove hair?
Laser hair removal systems gently remove unwanted hair. While dermatologists continue to research the exact science of laser hair removal, it appears that the light energy causes thermal injury to the hair follicle. This occurs because laser light is converted into heat as it passes through the skin and is absorbed in the target pigment melanin found in the hair follicle. When the temperature reaches a high enough level in a hair follicle during its active phase, the targeted hair structures are disabled, thus inhibiting hair re-growth. In clinical trials to date using a number of different lasers and intense pulsed light hair removal systems, some test sites remained hair free for up to 2 years. What types of laser and light sources are used for hair removal? There are several laser and laser-like devices currently used for hair removal. These include, but are not limited to: • Alexandrite The long-pulse alexandrite laser achieves deep penetration into the dermis, where the hair folli
