These lubricants are normally made by the joint tissue. GP Flex fights damaging enzymes within injured joints and provides essential nutrients that encourage production of joint fluids. These fluids are depleted during strenous activity. GP Flex contains 1782 mg per oz chrondroitin sulfate per scoop of natural body lubricants. Directions: Dogs & Cats: Feed 1 level scoop daily for each 25 pounds of body weight. DO NOT FEED TO CATTLE OR OTHER RUMINANTS. Each scoop contains 191 mg of Chondroitin Sulfate. *Contains* approximately 112 level scoops. "100% GUARANTEED"