Polyoxyethylene Sorbitan Monostearate is a synthetic compound produced from ethylene oxide, sorbitol and stearic acid (a natural fatty acid). It acts as an emulsifier, stabilizer, thickener and a gelling agent. It can commonly be found in products such as bakery goods, frozen desserts, imitation dairy products, sauces, soups, creams, lotions, shampoos, and other emulsions.