Hypochlorous Acid (HOCl) is a weak acid that occurs naturally in our bodies as a component of the immune system. It's valued for its antimicrobial properties, which can help reduce the risk of infection in wounds, as well as its potential to soothe and calm irritated skin, which makes it useful in products for conditions like acne or dermatitis. HOCl commonly used in skincare products like wound cleansers, first aid sprays and certain dermatological treatments.