Joint disease, especially 'wear and tear' of the cartilage on the articular surfaces of joints is one of the most common reasons for lameness in horses and ponies, and can affect those in lighter work or older horses, as well as those with a strenuous training and competition programme. In a healthy joint, cartilage is continuously undergoing repair to micro-damage, but as cartilage doesn't have its own blood supply, it relies upon the bone underneath and the synovial fluid bathing the joint to supply nutrients and key compounds to complete these repairs. As the horse ages, or the daily impact of training and competition increase, the ability of the synovial fluid and bone to provide these nutrients may not be enough to keep up with the rate of repair, and damage and resulting pain and lameness begin to occur. It is therefore vital that the horse has a supply of the key building blocks and nutrients to maintain the quality of joint fluid and hence allow the joint to keep up with the rate of cartilage repair in order to support joint health and mobility. Glucosamine HCl 12,000 provides those key compounds, including 12 g glucosamine per 30 g loading dose, as well as key nutrients hyaluronic acid and MSM, to provide nutritional support for both cartilage repair and to help maintain synovial fluid which lubricates and nourishes the joint.