Grizzly Pet Products Liquid Joint Aid for Dogs, 32 oz. Joint Aid combines four powerful joint ingredients with wild Antarctic krill oil to support digestive absorption. The result is a unique joint product that can be more readily absorbed by your dog to help maintain the health of hips, joints, cartilage, collagen, and other cell structures of the body that are responsible for movement. Four Joint Ingredients: Glucosamine, Chondroitin, MSM, Hyaluronic Acid (HA) Glucosamine: used in the formation of tendons, ligaments, bones and skin; helps cartilage maintain its natural shock absorber fluids. Chondroitin: supports cartilage resilience while serving as its most abundant building block. MSM: important sulfur source for healthy connective tissue, joint function, cell replacement, enzyme activity and the immune system support. Hyaluronic Acid (HA): helps lubricate and cushion joint tissues, generate new cells, and dispose of metabolic waste