Joint MAX is the newest generation of joint supplement which contains Glucosamine, Chondroitin, Zinc and Vitamin C in one tasty tablet. Also contains zinc and N-acetyl-cysteine for added joint healing. Joint MAX helps combat the stiffness and achiness that occurs when the cartilage between your pets bones breaks down. Joint MAX naturally lubricates your pets joints and helps to gradually rebuild cartilage. No prescription is necessary.