NOW Extra Strength Glucosamine and Chondroitin combines two well-known joint support ingredients in their sulfate forms. Glucosamine is an essential building block for the formation of glycosaminoglycans (GAG's) and proteoglycans, the main components of cartilage tissue.* Chondroitin Sulfate is a glycosaminoglycan that has been combined with Glucosamine in this product for the support of proper joint mobility and comfort.* NOW Foods developed the glucosamine test method chosen as the official AOACI industry standard method.
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