My wife and I both use this but it was primarily bought for our dog. She has knee trouble and using a red light therapy on her daily has dramatically improved her mobility. This also has helped me recover from a pretty bad rotator cuff tear
I have owned several red/ir light therapy belts over the years and this one is the best for its price and lifetime guarantee! The lighted region is lengthier than others both in the red light region and the wrap-around strap region which makes it easier to use in different areas of the body. The remote control that allows for different time sets and red/ir frequency choices is an added luxury!