Glyceryl Isostearate
Glyceryl isostearate
- Role
- An emulsifier and softening ingredient of the base.
- Catalog formulas
- 6
- Type
- Texture
- Verified
- 06.11.2026
What does this ingredient do in an antiperspirant?
A monoester of glycerin and isostearic (branched) acid. CosIng lists emollient and emulsifying functions.
Part of a system, not a label in isolation
In the catalog it appears in roll-on emulsions. It helps stabilize the mixture and softens the after-feel; it does not reduce sweating.
The CIR (2020) found Glyceryl Isostearate, like other fatty acid monoglycerides, safe in the present practices of use.
In studies cited by the CIR it was classified as non-irritating to rabbit skin. An individual reaction to the finished product remains possible.
Do not confuse it with Glyceryl Stearate: isostearic acid has a branched chain, so this is a different substance even though the functions are similar.
Products containing Glyceryl Isostearate
Links are based on the complete published INCI list for the exact product version.
Sources
The conclusions apply to the stated conditions and jurisdictions, not automatically to every concentration or product.
- EU CosIng: GLYCERYL ISOSTEARATE Supports: function, substance identity
- CIR: Safety Assessment of Monoglyceryl Monoesters as Used in Cosmetics (2020) Supports: safety assessment, irritation data