Vet"s Best the widely trusted natural health care line for pets, has been applying natural science to its formulations for more than 28 years: Veterinarian-invented, natural ingredients and natural health systems. Vet"s Best uses only the highest quality natural ingredients across all of its formulas. We could talk about our natural ingredients from sunup to sundown. But, if the products didn"t work, it would be a pretty meaningless conversation. So let"s just say you can count on our ingredients being carefully selected for the highest possible quality. And thoroughly researched to assure each product has the balance of ingredients that is most effective for whatever the product is created to do. Our gentle formula helps support normal, healthy cartilage, connective tissue and joint mobility. Glucosamine helps maintain synovial fluid that lubricates the joints. It also supports strong, healthy bones and the antioxidant properties help remove damaging free radicals.