--- title: "Glyceryl stearate" description: "Glyceryl stearate is a glycerin and stearic acid ester used for emolliency and emulsification. Learn how it differs from the self-emulsifying SE grade." --- # Glyceryl stearate > Glyceryl stearate is a glycerin and stearic acid ester used for emolliency and emulsification. Learn how it differs from the self-emulsifying SE grade. Source: https://cosmetic-labs.com/glossary/glyceryl-stearate Created: 2026-11-10T10:19:53+00:00 Modified: 2026-11-10T10:19:53+00:00 Author: Emilie SCHOL ## Definition of Glyceryl stearate Glyceryl stearate is the monoester of glycerin and [stearic acid](https://cosmetic-labs.com/glossary/stearic-acid). It is used in cosmetics as an emollient and emulsifying ingredient. Glyceryl stearate SE is a distinct self-emulsifying grade containing sodium and/or potassium stearate. ### Learn more ## An ester rather than a free fatty acid Glyceryl stearate is an ester of glycerin and stearic acid. More specifically, its ingredient definition describes a monoester. It therefore belongs to a different chemical category from stearic acid itself and from [stearyl alcohol](https://cosmetic-labs.com/glossary/stearyl-alcohol). Reading the full name is important: a d stearate or stearyl word stem does not mean the same raw material can be substituted or declared under a different name. ## Emollient and emulsifying functions In cosmetics, glyceryl stearate is used as an emollient and emulsifying ingredient. Emolliency describes a skin-conditioning role, while emulsification concerns the organization of a formulation containing different phases. These are useful descriptions of ingredient function, but neither establishes the performance of every finished cream. An ingredient list cannot show whether a particular formula meets its intended sensory, stability or consumer-benefit brief. ## What the SE suffix changes Glyceryl stearate SE is a self-emulsifying grade containing some sodium and/or potassium stearate. The suffix is therefore meaningful rather than decorative. It identifies a grade that includes additional stearate material and has its own ingredient definition. When a formulation calls for one grade, do not assume the other is identical. Check the exact raw-material specification and ingredient declaration before comparing prototypes or changing suppliers. ## Commercial materials and composition The idealized monoester identity does not imply that every commercial material is composed of that molecule alone. Glyceryl stearate and its SE grade may contain mono-, di- and triglyceride impurities as well as fatty acid impurities. This makes compositional documentation relevant to product development. Ask for the supplied material’s specification rather than assuming a universal purity from the generic ingredient name or from the word monoester. ## Related names are not synonyms Glycerin, stearic acid and glyceryl stearate are not interchangeable labels. The ester has a different chemical identity from its starting components. Glyceryl stearate SE also needs to be distinguished from the non-SE ingredient because of its self-emulsifying grade definition. Maintaining those distinctions helps avoid confusion when reading a formula, comparing a supplier document or explaining why a product contains more than one related fatty ingredient. ## Safety and finished-product interpretation An ingredient safety conclusion concerns the practices of use and concentrations evaluated; it is not a clinical efficacy finding for every product containing the ingredient. Glyceryl stearate’s use as an emollient or emulsifier does not independently prove that a cream repairs a skin condition or remains stable for a chosen shelf life. In a development brief, name the intended formulation function and grade, then evaluate the complete product for the performance claims being made. Sources ## Sources and references References supporting this page are listed below. Source access dates and supported claims are recorded in the evidence notes where available. [Safety Assessment of Monoglyceryl Monoesters as Used in Cosmetics, Final Amended Report (2016)](https://www.cir-safety.org/sites/default/files/glyest122015FAR.pdf) URL [https://www.cir-safety.org/sites/default/files/glyest122015FAR.pdf](https://www.cir-safety.org/sites/default/files/glyest122015FAR.pdf) [Safety Assessment of Monoglyceryl Monoesters as Used in Cosmetics, Final Amended Report (2016)](https://www.cir-safety.org/sites/default/files/glyest122015FAR.pdf) URL [https://www.cir-safety.org/sites/default/files/glyest122015FAR.pdf](https://www.cir-safety.org/sites/default/files/glyest122015FAR.pdf) [Safety Assessment of Monoglyceryl Monoesters as Used in Cosmetics, Final Amended Report (2016)](https://www.cir-safety.org/sites/default/files/glyest122015FAR.pdf) URL [https://www.cir-safety.org/sites/default/files/glyest122015FAR.pdf](https://www.cir-safety.org/sites/default/files/glyest122015FAR.pdf) [Safety Assessment of Monoglyceryl Monoesters as Used in Cosmetics, Final Amended Report (2016)](https://www.cir-safety.org/sites/default/files/glyest122015FAR.pdf) URL [https://www.cir-safety.org/sites/default/files/glyest122015FAR.pdf](https://www.cir-safety.org/sites/default/files/glyest122015FAR.pdf) --- ## Site identity - Organization: Cosmetic Labs - Description: Cosmetic Labs is a directory and a platform to meet all your cosmetic product development needs. From sourcing raw material to finding the best CRO for your needs. - Website: https://cosmetic-labs.com