The superior ingredients in California Baby Diaper Rash Cream work together to heal and prevent diaper rash from occurring by creating a moisture barrierwithout chemicals or fish oils. Natural ingredients such as United States Pharmacopeia (USP) grade ultra-purified lanolin, 12% vitamin-grade zinc (anti-fungal) and vitamin E, in addition to organic tea tree, aloe vera, and our proprietary Calming aromatherapy blend that includes French lavender provide a soothing and healing layer of protection.