Su-Per Flex is a supplemental source of chondroitin sulfate (2,500 mg. per ounce) for use in the daily feed ration of horses. Chondroitin sulfate is a member of the glycosaminoglycans family. "100% GUARANTEED" DO NOT FEED TO CATTLE OR OTHER RUNIMANTS. This item carries a shipping weight of 3 pounds. Directions: Feed 1 ounce daily. The day before race increase to 3 ounces. May be fed on race day. 1 ounce scoop enclosed. Ingredients: Dextrose, Chondroitin Sulfate, natural flavoring.