I think it's a miracle product. I started using it 3 days ago on my feet and knees. I have lymphoedema and had Parkinson's until a month or so ago. Haven't been able to walk without a walker for 3 years now and had a power wheelchair delivered about a week ago. Now I am walking. I'm still using my walker for balance, but I can walk easily again. No more shuffling feet.

I tried it on my hands.
My right shoulder had been waking me up at night and that stopped.

It might be coincidence, but I don't think so.