Xylitol Sweetened Joint Support 100 mg Per Serving Important Joint Lubricant Plus Other Joint Supporting Vitamins and Amino Acids Delicious Berry Flavor!! A Dietary Supplement Vegetarian - Vegan General Health Family Owned Since 1968 GMP Quality Assured Hyaluronic Acid is a compound present in every tissue of the body, with the highest concentrations found in connective tissues such as skin and cartilage. As a constituent of joint fluid, Hyaluronic Acid serves as a lubricant and plays a role in resisting compressive forces. Our formula combines this critical joint component with Vitamin D and other important nutrients for the support of optimal joint health.