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Glycerol Monostearate

Excipient (pharmacologically inactive substance)

Medically reviewed by Last updated on Sep 7, 2020.

What is it?

Glycerol monostearate (C21H4204), also known as GMS, is a white or slightly yellow, odorless powder with a sweet taste. It is the ester of glycerol and one molecule of stearic acid; used in the manufacture of cosmetic creams and dermatologic preparations. In the pharmaceutical industry it is used as an emulsifier, typically to emulsify water and oil products.[1]


[1] Glycerol monostearate. Accessed April 14, 2012.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.