How does the laser remove hair?
A laser produces a beam of highly concentrated light. Different types of lasers produce different colors of light. The color of light produced by a particular laser is the key to its effect on hair follicles.
The pigment located in hair follicles absorbs the light emitted by the LightSheer Diode Laser. The laser pulses for a fraction of a second, just long enough to vaporize the pigment, disabling several follicles at a time to eliminate or significantly impede the hair's re-growth.
The key to the effectiveness of the laser is the principle of Selective Photothermolysis. By properly adjusting the pulse width (the amount of time the laser is on) the laser light is able to pass - unaffected -- through the thin layer of skin pigment and reach the deep hair follicle. At the follicle level, the laser energy is absorbed and transformed into heat that disables the follicle. As a result, hair growth is impaired without affecting the surrounding tissue.
Importantly, LightSheer's special contact-cooling hand piece directs the laser energy to the hair root while protecting and cooling the surrounding skin.