I am trying to find a 100% natural lotion to market. I have been making some that have turned out very nice, but so far my batches keep getting moldy. I have been trying to use some of the natural preservatives such as: Rosemary, GSE, and vitamin E. Are there any truly natural preservative that actually work? I was keeping some of the lotion in the fridge, that did increase the shelf life. Does anyone know how long the shelf life is without preservatives in the fridge? Can you actually sell lotion that needs to be kept in the fridge?