Glucosamine and chondroitin are two of the most common nutrients used to support joint health.* 21st Century combines these two ingredients for nutrionals join support.* No added sugar, yeast or preservatives. Just two tablespoons daily. 16 servings. Color change may occur with this product, however, the potency will not be affected. *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.