Used to moisten the mouth and enhance our essential oil flavoring.  Also used as a preservative to keep the paste moist and to keep the ingredients from separating.  Our glycerin is naturally derived from vegetable oils which undergo advanced processing (hydrolysis) to obtain a highly pure final food grade ingredient.  Glycerin can also be derived from animal fats, however, we avoid using this type of glycerin in order to stay true to our definition of natural and commitment to cruelty free.