Hypochlorous acid, or HOCl, is a weak acid naturally produced by the body’s white blood cells to fight against viruses and bacteria. Because of its disinfecting properties, it is commonly used in hospitals to clean patients’ rooms. HOCl is also used in wound-cleansing applications. Due to its non-toxic nature, hypochlorous acid is also used in food production, including directly on food. In fact, it’s even used in eye-makeup remover as it’s an effective cleaning agent that tends not to irritate skin. The FDA and EPA both recognize the effectiveness and safety of this active ingredient.