Lanolin is a natural, wax-like substance derived from the wool of sheep. It acts as a protective barrier, keeping the sheep's skin and wool moisturized. Widely used in skincare and cosmetics, lanolin is known for its powerful moisturizing properties, helping to soothe and hydrate dry, rough, or irritated skin. Its unique ability to mimic the natural oils in human skin makes it a key ingredient in creams, lotions, ointments, and balms.