In a double boiler over medium heat, melt all your oils and butters together and stir together until well combined and liquefied.
Remove from heat and and gently add zinc oxide a small spoonful at a time, stirring to incorporate, until cream begins to appear thicker, opaque and may look a bit lumpy. Then add a few drops of essential oil if you wish and stir. Easy peasy!
Pour into a small jar and place a tight fitting lid on. Refrigerate for at least an hour to allow to set up. (Does not need refrigeration to stay fresh. I keep it on my changing table.) Use at every diaper change, or just as needed to soothe red, rashy bottoms. OR may be used for many types of skin irritations. It is magical for chaffing!