PRO-ACTA H.A Maximum Strength is highly therapeutic for animals with visible signs of immobility or an issue or concern. Repairs cartilage, prevents breakdown and reduces inflammation. Species specific hyaluronic acid is added for increased supply of the joint fluid. 100% Active Ingredient - No Filler! Two types of glucosamine for absorption and collagen production. Highly Bioavailable, therapeutic and fast acting. Pure and concentrated with tiny servings make it easy to administer.