Calescene powder helps treat and prevent diaper rash and is an important part of infant care. Zinc has been known for years by dermatologists to help heal broken, irritated skin. By applying zinc in a powder form on a daily basis, this can help prevent the development of skin conditions as well as chafing, in the delicate diaper area. Corn starch in some diaper rash products acts as food for yeast and bacteria and is NOT recommended for use on the skin!