21st Century Arthri-Flex Advantage Tablet With MSM, Glucosamine, Chondroitin & Hyaluronic Acid, For Joint Health Is an effective joint support formula developed based on joint nutrition science that combines glucosamine sulfate, naturally occurring chondroitin sulfate, MSM (methylsulfonylmethane), FLEXICOL made from premium type II chicken sternum collagen containing chondroitin sulfate and hyaluronic acid, along with synergistic herbal extracts and mineral compounds to support healthy functioning joints and cartilage, as glucosamine supports flexibility, mobility, and cartilage formation, chondroitin sulfate supports joint fluids for cushioning and lubrication, MSM provides a source of sulfur that supports collagen formation important for cartilage structure, hyaluronic acid supports joint lubrication, and this complete dietary supplement supports joint structure, flexibility, mobility, and protection of joint tissue and is suitable for individuals with joint pain, inflammation, or stiffness.