My senior bulldog, Maggie had difficulties using the stairs because of soreness in her joints and she also had a slight limp. I tried Liquid-Vet as a last ditch effort before having to put her on medication. My expectations were not very high, but after a week of being on the product, I was shocked to see Maggie running in the yard and going up and down the staircase multiple times a day with ease and no limp. Liquid-Vet is a miracle in a bottle! Thank you for making such a great product.