The Nd:YAG (Nd:Y3Al5O12) laser utilizes 1064nm wavelength
in the infra red spectrum. Its light is absorbed mostly
by hemoglobin found in red blood cells. 1064nm is in
the invisible infra red spectrum and is not absorbed
by the melanin in the skin. The longer wavelength allows
penetration down to the level of skin vessels. The
Nd:YAG laser is effective for small spider veins of
the legs and telangiectatic matting of very small red
blood vessels that are too small to accommodate a needle
for sclerotherapy.
It is also effective for the fine red telangiectasia
of the face commonly found around the nose.
This laser can also be used for laser hair removal
of people with the darkest skin types.