Laser hair removal is the process of removing unwanted hair by means of exposure to pulses of laser light that destroy the hair follicle. It had been performed experimentally for about twenty years before becoming commercially available in the mid-1990s.
One of the first published articles describing laser hair removal was authored by the group at Massachusetts General Hospital in 1998. The efficacy of laser hair removal is now generally accepted in the dermatology community, and laser hair removal is widely practiced in clinics, and even in homes using devices designed and priced for consumer self-treatment
There is good news for those who have an unwanted body design. Newer laser tattoo removal techniques can eliminate your tattoo with minimal side effects. Here's how it works: lasers remove tattoos by breaking up the pigment colors of the tattoo with a high-intensity light beam.
Black tattoo pigment absorbs all laser wavelengths, making it the easiest to treat. Other colors can only be treated by selected lasers based upon the pigment color.
Erbium-YAG Laser For Scar Resurfacing
Er:YAG lasers have been used for laser resurfacing of human skin. Example uses include treating acne scarring, deep rhytides, and melasma.
Er:YAG lasers are solid-state lasers whose lasing medium is erbium-doped yttrium aluminium garnet (Er:Y3Al5O12). The triply ionised erbium dopant (a substance added in minute amounts to another pure substance to alter its conductivity) typically replaces a small fraction of the yttrium ions in the host crystal structure, since the two ions are of similar size. Unlike Nd:YAG laser, the output of an Er:YAG laser is strongly absorbed by water.