Burgerstein ChondroVital contains glucosamine in the form of glucosamine sulphate and chondroitin, supplemented with vitamins and trace elements. Glucosamine and chondroitin are natural components of connective tissue, ligaments and joint cartilage. Vitamin C contributes to collagen formation for normal bone and cartilage function. Vitamins D and K support the maintenance of normal bones. Vitamin E, zinc, manganese, copper and selenium help to protect cells from oxidative stress.