It really worked for my dog, he is a bully at 1 foot tall and 115 lbs, no fat all muscle. Well he had hurt himself when he was younger - both back legs - and when it gets cool he can hardly walk at all.
I started the joint stress and he did so much better. I could take him for his daliy walk.
Now I am out and my pet store does not carry it any more and it shows really bad so here I am. Found it, thank you.