Coloplast Prep Medicated Protective Skin Barrier is a film or Second skin wherever added skin protection is required. Fast-drying, noncracking and nonpeeling. Allows skin to breathe. Coloplast Prep Medicated Protective Skin Barrier forms a light, breathable barrier that protects against urine, feces, and adhesives. Simply apply to the skin with a cotton ball, or choose the individually-wrapped wipes for convenience.