The ingredient, explained
Glyceryl Stearate
A human skin experiment included this emulsifier.
Ingredient guide
What it is and what it does
Glyceryl stearate is an ester of glycerin and stearic acid. It has recorded emollient and emulsifying roles, supporting skin-surface softness and the mixing of liquid formula components.
About this ingredient: CosIng identity and functions via Open Beauty Facts ↗ · European Commission ingredient function definitions ↗
- Emollient
- Helps soften and smooth the skin surface.
- Emulsifying
- Helps liquids that do not normally mix form a mixture.
Function definitions: European Commission ingredient function definitions (SCCNFP/0299/00, pages 16 to 20) ↗
Registry functions describe possible formulation roles, not results for a finished product. A dictionary entry is not an approval or a safety assessment.
A closer look
What the research shows
Human topical research
The experiment found that emulsifiers could affect water loss differently in intact and detergent-damaged skin.
What this does not tell us
The abstract lists this ingredient among those tested but does not assign the aggregate results to each emulsifier. It cannot support a specific benefit or harm claim for this ingredient.
Sources for this summary. PubMed 10675696 ↗
Research review checked Oct 1, 2026
Bounded review of 1 local candidate records, selected relevant abstracts, and targeted exact-name primary-source searches. Not a systematic review.
Ingredient research is not proof that a product containing this ingredient works.
Read the 1 selected study
Human topical research
Unexpected skin barrier influence from nonionic emulsifiers. ↗
International journal of pharmaceutics · 2000
Follow the formula
Products containing this ingredient
From the wider catalogue. Linked by the ingredient list, without an efficacy ranking.
Names and identifiers
Registry identity
Stearic acid, monoester with glycerol
- INCI name on ingredient lists
- GLYCERYL STEARATE
- CAS registry number
- 31566-31-1
- EC number
- 250-705-4/286-490-9
Other recorded names (2)
- glyceroli monostearas
- glyceryl monostearate
Sources for this ingredient record
- EU CosIng ingredient registry (via Open Beauty Facts taxonomy) ↗ · ODbL 1.0 (Open Beauty Facts database) · Recorded Aug 8, 2026
- European Commission ingredient function definitions ↗ · Recorded Sep 30, 2026


