Glycerin is a type of alcohol derived from sugar. It is used as a moisturizer for skin and hair, and in cosmetic products for its many different effects such as skin protector, solvent and thinner. It does not have any negative effects on human health when used in cosmetic products. Since there is no better substitute for glycerin, which has been observed to have slightly harmful effects on aquatic life, it is considered clean according to Evla Standards.