Cetaphil Baby Diaper Cream provides a barrier against moisture that keeps babies? skin healthy and dry. The best diaper creams contain a combination of moisturizers and non-toxic protectants. The most common ingredients in diaper creams include zinc oxide, petrolatum, and moisturizers like shea butter, lanolin, and beeswax. Cetaphil Baby Diaper Cream is a gentle and effective diaper cream that uses zinc oxide to help protect babies? skin. In addition to the common ingredients found in other diaper creams, Cetaphil also has calming organic calendula, vitamin B5, and vitamin E.