See also laser light show.In addition to lasers, some light-based epilators make use of a xenon flash lamp which emits full-spectrum intense pulsed light (IPL) . Treatment with this device is sometimes popularly known as laser hair removal, although the device is not really a laser by itself.

The main principle behind laser light show hair removal is selective photothermolysis. Lasers may cause localized damage by selectively heating dark target matter in the region that causes hair regrowth whilst not heating the rest of the skin. Light is absorbed by dark objects, so laser energy could be absorbed by dark material within the skin (but with much more speed and intensity). This dark target matter, or chromophore, can be naturally-occurring or artificially introduced.

Hair laser light show selectively target 1 of 3 chromophores:Carbon, that is introduced into the hair follicle by rubbing a carbon-based lotion in to the skin following waxing (this lotion is definitely an "exogenous chromophore"). When irradiated with a Q-switched Nd:YAG laser, the carbon causes a shock wave able to mechanically damaging nearby cells. This process has been abandoned since it does not cause permanent loss. (It's been replaced with the long-pulsed Nd:YAG laser which targets endogenous melanin in the follicle.)Hemoglobin, which occurs naturally in blood (it gives blood its red color). It preferentially absorbs wavelengths from argons, and also to a smaller extent from rubies, alexandrites, and diodes. It minimally absorbs the Nd:YAG laser wavelength. Hemoglobin is not a primary target for laser hair removal.ne more thing to conlaser laser stage light is if teenagers。