The McKesson No-Sting Skin Barrier Film Forms a barrier to protect the skin from adhesives, friction, and body fluids, it’s Alcohol-free formula for sting-free comfort, leaves a thin, breathable and transparent film on skin with no offensive odor, it Increases adhesion of tapes and wafers for added security and extended use-time. It’s Gentle formula prevents irritation and breakdown of normal, and sensitive, intact skin. Commonly used to initiate-crusting technique individually wrapped packets for added convenience.