Medicinal Ingredients (per capsule): Glucosamine HCl (exoskeleton of shrimp, crab) ....................... 300 mgChondroitin Sulfate (chondroitin sulfate sodium from bovine cartilage) . . . 281.7 mgMSM (methylsulfonylmethane) .................................... 300 mgVitamin C (ascorbyl palmitate) ....................................... 2 mg Non-Medicinal Ingredients: Vegetarian capsule (hypromellose, water). Contains: Shellfish (shrimp, crab) Contains shellfish.