If you have anything you're not sure about, that you'd like to see defined, drop me an email . Antioxidant Literally, anti-oxidation. Antioxidants block this reaction and thereby prolong the life of your oils. Note, however, that an antioxidant is not the same as a preservative. They do not prevent bacterial or mold growth.
Many oils have natural antioxidant properties by being high in vitamin E, such as wheat germ oil.
For example, many pigments are what is called industrial grade, which means that they are for use in things such as polymers or plastics or paint, not for products for use on the skin. Cosmetic grade fragrance oils are fragrance oils which have been diluted with a solvent or carrier oil so that they are safe to use straight on the skin. DB Double Boiler. DH Direct Heat. CS Closed System.