I bought Liquid-Vet for my 10 year old Labrador Retriever about 5-6 weeks ago. She had been showing signs of stiffness when getting up from her mat and walking very slow. Since being on Liquid-Vet, she is running more and her regular walk is at a brisker pace. She is obviously in less discomfort. We have just bought our second bottle and will definitely keep her on it. She knows when I am adding it to the morning meal and I think loves the pot roast flavour on her kibble. Thanks for a great product.