Vycerin™ GL91 USP Vegetable kosher glycerin is derived from renewable, vegetable oils.  It is made from transesterification of vegetable oils followed by a distillation process. The Vantage site is FDA registered and meets stringent cGMP standards at our manufacturing site and throughout our supply chain.  Vycerin™ GL91 USP vegetable glycerin is used in food and beverage, personal care, oral care, polyols.