Chondroitin Sulfate Support for Joint Tissue Chondroitin sulfate (CSA) is a mucopolysaccharide found in cartilage, tendons, and ligaments, where it is bound to proteins such as collagen and elastin. In our joints, it contributes to strength, flexibility and shock absorption. Current research indicates that supplemental CSA may help maintain proper joint function.* 400 mg Tablet Option Available: 30, 60, 120 Suggested Use: 2 tablets, 1 to 2 times daily. Allergies: Contains no yeast, dairy, egg, gluten, soy or wheat. Contains no starch, preservatives, or artificial color, flavor or fragrance.