By promoting the natural flow of oxygen and water vapor to and from the skin, the water-free ointment creates a mild, semi-occlusive protective layer that enables the skin to "breathe" and fortify its defenses. Glycerin and panthenol are added to the ointment. A powerful moisturizer that draws and retains water in the skin is glycerin. It works with Panthenol, which moisturizes skin and speeds up regeneration and repair.