Cold lasers really do not do anything more than shine a bright light on an area, real lasers act on water like a microwave oven and explodes the water in tissue thus cutting it, if there is no water in the tissue real lasers like I have do not work. My laser which cost about $90,000 can cut tooth structure without numbing (yes I'm a dentist) and my small lasers can cut thru tissue with ease but these are not "Quack lasers" read below
Stephen Barrett, writing for Quackwatch, concluded there was evidence to support LLLT use for temporary pain relief, but "there's no reason to believe that they will influence the course of any ailment or are more effective than other forms of heat delivery."[16]
The insurance company, Cigna, has reviewed the evidence for LLLT and concluded that it is still considered an experimental treatment. Therefore, Cigna does not provide coverage for it.[17]