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Glycerol Monooleate

Medically reviewed by Last updated on Aug 31, 2023.

Excipient (pharmacologically inactive substance)

What is it?

Glycerol monooleate (C21H40O4) is a clear amber or pale yellow liquid. It is an oil soluble surfactant and is classified as a monoglyceride. It is used as an antifoam in juice processing and as a lipophilic emulsifier for water-in-oil applications. It is a moisturizer, emulsifier, and flavoring agent. Various forms of glycerol oleate are widely used in cosmetics and it is also used as an excipient in antibiotics and other drugs. Glycerin is classified by the U.S. Food and Drug Administration (FDA) as “generally recognized as safe” (GRAS).[1]

List of medications using Glycerol Monooleate


  1. US Department of Agriculture. Glycerol monooleate processing.

Further information

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