TENDLITE seems to work great, improving circulation and resolving aches. My husband had toenail damage a year ago and we have not been able to get it to grow back properly. Using TENDLITE daily, we have not only seen positive growth, but the new nail looks really healthy. There have been other joint aches that we have used it on and have noticed they too have gone away. Great product for home use! Also, I must add that the rechargeable battery is an awesome added bonus.