Veterinarian formulated Chondroitin & Glucosamine joint supplement formula.This Veterinarian formulated, all natural active ingredient joint formula, combines chondroitin sulfate and glucosamine to make the ultimate joint formula for your dog or cat. Chondroitin sulfate and glucosamine HCl are known to supply and build glycosaminoglycans (GAGS) and collagen. These are essential for rebuilding cartilage and synovial fluid. It also contains essential antioxidants. Antioxidants are know to remove damaging free radicals.