NOW® Vegetarian Glucosamine ‘1000’ is a well-known joint support ingredient that is vegetarian/vegan friendly and not shellfish-derived.* 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.* GreenGrown® and the GreenGrown® logo are registered trademarks of Ethical Naturals Inc. Natural color variation may occur in this product.