A year ago my veterinarian told me that my dog Tulip had the worst arthritis he'd ever seen. I saw the great reviews and started this product. It worked so great that I forgot my dog had arthritis because she no longer showed symptoms and I stopped the product. She immediately worsened. I tried other products with no success and eventually was using narcotics 24/7. My dog would stand and fall over and I had to drag her across the floor to take her outside. Thankfully I remembered this product and ordered it again. Remarkably Tulip my bulldog has done super the last few days. This is an amazing product. I thought I was going to have to put my dog down all December and especially Christmas week. Now she's got her wiggly bum back!!! I am so happy for us!