defensin

Defensins are small proteins produced by the immune system that help protect the body against bacteria, fungi, and viruses. They work as natural antibiotics, attaching to and disrupting the outer membranes of harmful microbes, which leads to their destruction. Found in many human tissues like skin, respiratory, and digestive tracts, defensins play a crucial role in maintaining health by providing an immediate defense before the larger immune response kicks in. Their ability to target a wide range of pathogens makes them an essential part of the body's innate immune system.