Clinical Drug Experience Knowledgebase

Glyceryl 1-stearate (Glycerol monostearate), commonly known as GMS, is an organic molecule used as an emulsifier. GMS is a white, odorless, and sweet-tasting flaky powder that is hygroscopic. It is a glycerol ester of stearicacid. It occurs naturally in the body as a product of the breakdown of fats by pancreatic lipase, and is also found in fatty foods. GMS is a food additive used as a thickening, emulsifying, anti-caking, and preservative agent; an emulsifying agent for oils, waxes, and solvents; a protective coating for hygroscopic powders; a solidifier and control release agent in pharmaceuticals; and a resin lubricant. It is also used in cosmetics and hair care products. Used in antiperspirants and deodorants, baby care, body care, facial care, sun care, conditioners, facial make-up, creams and lotions-skin care, sprayable emulsions, feet, hands and nails, self-tanning, nail grooming and color cosmetics. GMS is largely used in baking preparations to add "body" to the food. It is responsible for giving ice cream and whipped cream its smooth texture. It is sometimes used as an anti-staling agent in bread. Glycerol 1-stearate is affirmed by FDA as GRAS.   ^NCATS