Proanthozone is an antioxidant, nutritional supplement for dogs and cats. It works to help reduce oxidative stress and combat free radicals in the body. It contains bioflavanol from grape seed extract, vitamin E and A, manganese, zinc, selenium, and N-acetyl-cysteine to help repair oxidative damage to cells, tissue, and nerves. Proanthozone also helps provide nutritional support for pets with diseases and conditions of the joints, liver, kidneys, heart, and immune system. Flavored sprinkle capsule can be split and applied directly to pet's food.