It is a health Canada approved natural product consisting of sodium free glucosamine sulfate, 98% pure form of chondrointin and MSM (methylsulfonylmethane). The articulating surfaces of the bones are covered in articular cartilage and are bathed in Synovial Fluid. In a normal healthy joint the articular cartilage is smooth and the synovial fluid is of sufficient high quality to provide adequate lubrication. In osteoarthritis, cartilage, the rubbery material that cushions joints becomes stiff and loses its elasticity, leading to loss of movement, pain, swelling and further deterioration. Combination of these three ingredients give the relief from joint pain associated with osteoarthritis.