The Discovery of LLLT’s Origin in Stimulating Hair Growth

In 1967, a Hungarian scientist studying the use of lasers in treating skin cancers in mice, discovered that visible red laser light may stimulate hair growth. The hair on the backs of the mice were shaved in the area to receive treatment. One group of mice received laser treatments, one group did not.

The hair within the shaven area grew back more quickly in the mice treated with laser.