120-count tub chicken liver flavor chews Chondro-Flex Joint Care is a trusted product family used for preventative and therapeutic support of joints in dogs and cats. It is the only such formula to combine Glucosamine HCl, BSE-free low-molecular-weight Chondroitin Sulfate and Methylsulfonalmethane (MSM), Vitality Systems' specific veterinary specifications, which resulted from years of research. Veterinarians have trusted Chondro-Flex's efficacy for many years.