The 808-nanometer wavelength of the laser is specifically selected because it is well absorbed by the melanin in the hair follicles. Melanin is the pigment that gives color to the hair. When the laser light is directed at the treatment area, the energy is selectively absorbed by the melanin in the hair follicles.
This absorption of energy heats up the hair follicles, damaging them to the point where they are no longer able to produce new hair. However, the surrounding skin tissues are relatively spared from damage as they contain less melanin and have better heat dissipation capabilities.
The process is typically carried out in multiple sessions spaced several weeks apart. This is because hair grows in different cycles, and multiple treatments are needed to target hair follicles in all phases of growth.
In conclusion, 808 laser hair removal works by selectively targeting and damaging the hair follicles using a specific wavelength of laser light, providing a safe and efficient way to achieve smooth and hair-free skin.