Barrier creams are protective lotions designed to create a barrier on the skin, preventing irritation from external substances. They are commonly used in various settings, including healthcare, food service, and industrial work, to shield the skin from moisture, chemicals, and friction. These creams often contain ingredients like dimethicone or zinc oxide, which help to form a protective layer. Barrier creams are particularly beneficial for individuals with sensitive skin or those exposed to harsh environments, as they can help reduce the risk of skin damage and maintain skin integrity.