Shelf Life of Avocado Hair MaskI make hair mask with fresh avocado, olive oil, castor oil, rosemary oil, coconut oil, vitamin E oil, and other essential oils. I keep them frozen and the one currently using refrigerated. It defrosts well but how long will they last without doing so? Leaving out refrigerator. I ordered avocado, lecithin, and grapeseed powders to help preserve future avocado masks.