The superior ingredients in California Baby® Diaper Rash Cream work together to heal diaper rash and to prevent new diaper rash from occurring by creating a moisture barrier-without chemicals-between baby's bottom and the chemical irritants found in most disposable diapers. All natural, food-grade diaper rash cream includes ingredients such as ultra-purified lanolin, vitamin-grade zinc (12%) and vitamin E, in addition to organic tea tree and aloe vera.