Joint Collagen is a special blend to support joints, bones, cartilage, connective tissue and muscles. Contains collagen, various minerals (calcium, magnesium, zinc, manganese) and glucosamine sulfate, chondroitin sulfate, MSM, hyaluronic acid. Bones, muscles and joints, together with cartilage, tendons, ligaments and connective tissue, form the musculoskeletal system. This system gives our body structure and support and allows us to move. Bones and joints inevitably wear out to varying degrees - this can be caused by both aging and certain diseases. Collagen is an important protein, an important component of the normal structure of skin, bones and joints. Glucosamine and chondroitin are structural components of cartilage, the tissue that cushions joints. Manganese contributes to the normal formation of connective tissue Calcium, zinc, magnesium and manganese contribute to the maintenance of normal bone health. Vitamin C contributes to the normal formation of collagen for the normal function of bones and cartilage.