Catalase activates the decomposition of hydrogen peroxide, a reactive oxygen species, into water and oxygen. It functions as a natural antioxidant, protecting cells against oxidative damage to
proteins, lipids and nucleic acids. Catalase has also been used to study the role reactive oxygen species play in gene expression and
apoptosis. https://www.creative-enzymes.com/product/Native-Bovine-Catalase_883.html