There are four classes of lasers, which are concentrated energy. From the laser pointers that many of us are accustomed to in classrooms and professional presentations to industrial lasers that can cut diamonds, lasers are different strengths of the same technology. In medical and aesthetic settings, lasers are used for hair removal and surgery, among other things.
Lasers can go deeper than the hair follicle, to the muscles and ligaments. Once you concentrate a laser on the right place, it can help the body begin to heal itself. Lasers will create new blood vessels around the site where they are applied. That process, called angiogenesis, restores blood flow, and the restored blood flow helps the body begin to heal. Think of it as new highways to healing.