Extra-Flex HA® contains supportive nutrients to maintain healthy joint tissue and optimum mobility. Glucosamine HCl, Chondroitin sulphate and Methyl sulphonyl methane (MSM) are included to maintain healthy articular cartilage and joint function, as well as Hyaluronic acid which works within the joint capsule to aid shock absorption and stability. A generous helping of Rosehips is added to provide comfort to worn or tired joints.