Rise-N-Shine's Catalase Extreme 5000 is a natural supplement that is intended to provide the body with more of the enzyme Catalase that slowly depletes as we age. When catalase levels decline, naturally occurring hydrogen peroxide cannot be broken down which allows hair to be bleached from the inside out. Catalase Extreme 5000 contains a high concentration of Catalase, along with other nutrients, known for their amazing hair benefits! Our Natural Catalase Enhancer Products provide powerful antioxidant support. Catalase is known to be the single most efficient enzymes found in the cells of the human body.