Non-GMOJoint HealthJoint Mobility and ComfortA Dietary SupplementGeneral HealthFamily Owned Since 1968GMP Quality AssuredNow® Glucosamine Sulfate is well-known joint support ingredient. Glucosamine is an essential building block for the formation of glycosaminoglycans (GAGs) and proteoglycans the main components of cartilage tissue. These compounds attract water to form a joint cushion providing lubrication and shock absorption.Now Foods developed the glucosamine test method chosen as the official AOACI industry standard method.