Cosmetic ingredient

ACETYLATED GLYCOL STEARATE

Acetylated Glycol Stearate is an ester derived from glycol stearate. Its chemical name describes a molecule with a stearic-acid portion, which is a long-chain fatty acid, and an acetylated portion. That combination identifies the ingredient as it appears on a cosmetics ingredient list.

Molecular structure of ACETYLATED GLYCOL STEARATE
2D molecular structure
CAS number
22613-51-0
EC number
245-122-7
Molecular formula
C22H42O4
Molecular weight
370.6
Chemical name
2-acetoxyethyl stearate
InChIKey
JSUVMLHNHUCJTE-UHFFFAOYSA-N

ACETYLATED GLYCOL STEARATE: what it is

Acetylated Glycol Stearate is an ester derived from glycol stearate. Its chemical name describes a molecule with a stearic-acid portion, which is a long-chain fatty acid, and an acetylated portion. That combination identifies the ingredient as it appears on a cosmetics ingredient list.

It is not simply the same material as Glycol Stearate: acetylation changes the ester structure. PubChem identifies it as 2-acetyloxyethyl octadecanoate, a name that makes the stearate chain and the acetylated modification easier to distinguish.

ACETYLATED GLYCOL STEARATE: what it does in cosmetics

In cosmetics, Acetylated Glycol Stearate is used as an emollient. In practical terms, emollients are ingredients selected to support a softer, less rough feel at the skin surface; here that is a property contributed within the product, not a treatment claim.

It also helps stabilise emulsions, such as creams and lotions that bring water-based and oil-based phases together. This role is intended to help the mixture remain more uniform through use, rather than to deliver a clinical effect of its own on the skin.

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