Combine the shea butter, coconut oil and beeswax in a glass bowl placed over a hot pot of water or use a double boiler. Heat on low until the ingredients are melted and full incorporated. Remove from heat and stir in the zinc oxide, the essential oil, and the vitamin E oil. Pour into silicone mold and place in the fridge to cool for about 30 minutes. Pop out and store in tins or an airtight container. Store at room temperature.