My 12 year old lab has arthritis in her hips and the vet recommended this product for her. When she started it she was reluctant to get up and would not go up the stairs to come back inside without hesitation. After a month on the product she is back to her old self and doesn’t lay down all of the time so I know that it is working, but I was wondering if anyone has used this? It is pretty expensive, 37.00 per pound, but I would gladly use it if it means she is pain free and getting joint support.