The ingredient, explained

Ammonium Polyacryloyldimethyl Taurate

A published expert assessment examines cosmetic-use safety.

Emulsion stabilisingViscosity controlling

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Ingredient guide

What it is and what it does

1-Propanesulfonic acid, 2-methyl-2-[-1-oxo-2-propenyl-amino]-, monoammonium salt, homopolymer

About this ingredient: EU CosIng ingredient registry (via Open Beauty Facts taxonomy) ↗

Emulsion stabilising: Helps keep an emulsion from separating.
Viscosity controlling: Adjusts how thick or fluid a product is.

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

Safety assessment

The exact homopolymer is named in the final assessment supporting the reported cosmetic uses and concentrations.

What this does not tell us

The panel relies on polymer properties and shared safety data. The assessment does not establish a skin benefit or erase residual-monomer and formulation considerations.

Sources for this summary. Published source ↗

Research review checked Oct 1, 2026

Bounded targeted searches for the exact ingredient identity in primary research or final expert assessments, with selected-source verification. Not a systematic review.