Pure 100% Kosher USP Food Grade Vegetable Glycerin. Vegetable glycerin is a natural emollient that adds a cooling effect on the skin and has become a predominant ingredient in most skin care products and soaps. It is used in cosmetics and body care products to assist in retaining moisture and is helpful in pulling oxygen into the skin. Vegetable glycerin is also the principal medium for the manufacturing of non-alcohol based herbal extracts, which are called glycerites. Kosher certified and suitable for food and cosmetic use. This is ideal also to use for mixing with your E-Liquid to get more vapor and to cut down the nicotine content if to harsh.