Catalase 15,000 - 30 Day Supply! Rise-N-Shine\'s Pure Catalase Antioxidant Enzyme is now available in an easy to swallow capsule, with the 15,000 Iu\'s of Catalase in one small capsule! Catalase 15,000 is a vitamin supplement that contains 15,000 units of the enzyme Catalase so that your body can replenish the Catalase Enzyme, which slowly depletes..