Overview Lactoperoxidase is a naturally occurring enzyme found in milk, saliva, tears, and other bodily secretions. Known for its antimicrobial properties, it is a key component of the body’s natural defense system. Today, lactoperoxidase is widely used in cosmetics, oral hygiene products, food preservation, and even pharmaceutical formulations. Due to its broad range of uses and natural origin, it is generally considered safe when used appropriately. What is Lactoperoxidase? Lactoperoxidase is a heme-containing peroxidase enzyme, primarily found in mammalian secretions such as cow’s milk and human saliva. It is part of the peroxidase family of enzymes that function by breaking…