Catalase is widely used in the food industry to remove hydrogen peroxide from milk and dairy products, ensuring preservation and extending shelf life. In the textile industry, it is applied to bleach fabrics without causing damage, offering an eco-friendly alternative to traditional bleaching agents. The cosmetic industry utilizes catalase in hair dye formulations to neutralize hydrogen peroxide, protecting hair integrity. Additionally, it plays a role in biomedical research as a marker for oxidative stress and in diagnostic kits for detecting microbial contamination. Catalase is also employed in contact lens cleaning solutions to break down hydrogen peroxide, making lenses safe for use.