i have read people saying GLYCERIN usp is same thing as vg such as humico brand at walmart cvs brand and others i think they are mistaking because glycerin is a extracted from soap using lye to extract it all so comes from animal fats. if u dont belive me google glycerin i have a bottle of humco brand in my hand and no where on it dose it say v g it says glycerin and glycerin and vg are 2 diff things vg is made from plam oil ect not soap and animal fats