Bests & Worsts Reviews from Amazon

I investigated the technology and found a lot of studies that did in every case find the red light 660 nm did work very well. The NASA research was there. With the light you can see the outlines of your fingers bones & the blood vessels. After two weeks my carpel tunnel is almost gone! Wow what a difference! It does work very well and I am satisfied that they will stand behind the product. I am also using it on a scar I got after skin cancer removal and you can see the improvement. 5 over 5!