Glucosamine helps support cartilage and maintain structural integrity of joints and connective tissue. It is a building block for joint fluid, cartilage, ligaments, tendons, membranes and blood vessels. Schiff uses glucosamine hydrochloride (HCl) with 83% of active glucosamine. Contains: Glucosamine 2000mg; Hyaluronic Acid 3.3mg; Description: Joint Support Tablet.