How does a home laser hair removal device work?
The basic technology behind home laser hair removal is called selective photothermolysis. This is quite a mouthful, but the basic principles are fairly simple. When you direct a laser beam at light skin it is only absorbed by dark hairs. The heated hair follicles are damaged by the heat and eventually the hair falls out. Unfortunately these systems only work for persons with light skin tones and dark body hair. Dark skin–black, medium and dark brown–will absorb the laser energy and be burned. Home lasers are not recommended for sun-tanned or naturally dark skin. Home lasers are also not sold for removal of light hair–grey, blonde, or red–simply because they do not absorb laser energy.
