catalase

Catalase is an enzyme found in almost all living organisms exposed to oxygen, including humans. Its primary function is to protect cells from damage by quickly breaking down hydrogen peroxide—a harmful byproduct of various metabolic processes—into water and oxygen, which are harmless. This rapid conversion prevents hydrogen peroxide from accumulating to toxic levels and helps maintain cellular health. Catalase is highly efficient and essential for managing oxidative stress, ensuring cells function properly and survive in oxygen-rich environments.