Ultra Joint Supplement for Dogs and Cats is great for animals that currently experience pain from inflammation, joint stiffness, and/or trembling. Ultra Joint can also be used preventatively if you have a high energy or overly active animal. Ultra Joint’s formula softens, lubricates and relaxes the joint tissue. It helps reduce painful inflammation and restores the permanent vitality of your pet’s joints to rebuild the muscle, cartilage, and ligaments of the joint.