Ammonium Acryloyldimethyltaurate/Beheneth-25 Methacrylate Crosspolymer ●
TL;DR. This ingredient is a synthetic thickener and emulsion stabilizer used to build gel texture, suspend particles, and help oil-in-water formulas stay uniform. It is especially useful in lightweight creams, lotions, sunscreens, and clear or semi-clear gels.
What does Ammonium Acryloyldimethyltaurate/Beheneth-25 Methacrylate Crosspolymer do in a cosmetic formula?
This ingredient is a synthetic thickener and emulsion stabilizer used to build gel texture, suspend particles, and help oil-in-water formulas stay uniform. It is especially useful in lightweight creams, lotions, sunscreens, and clear or semi-clear gels.
Is Ammonium Acryloyldimethyltaurate/Beheneth-25 Methacrylate Crosspolymer clean?
From a clean beauty perspective, this ingredient has low direct irritation potential because it is high molecular weight and not very skin-penetrating. Its main friction is that it is a synthetic persistent polymer, so it may be restricted by standards that limit non-biodegradable or microplastic-type materials.
Is Ammonium Acryloyldimethyltaurate/Beheneth-25 Methacrylate Crosspolymer sustainable?
This material is made from petrochemical and fatty-alcohol-derived feedstocks, with the long-chain component potentially tracing to plant oils or petrochemical sources depending on supplier. It is not readily biodegradable and is expected to persist rather than break down quickly in water systems.
Is Ammonium Acryloyldimethyltaurate/Beheneth-25 Methacrylate Crosspolymer COSMOS-approved?
It is generally not permitted in COSMOS-natural or COSMOS-organic formulas because it is a synthetic crosslinked polymer that does not align with the standard’s biodegradability and petrochemical limits. From a Green Chemistry lens, its strong performance at low use levels is a plus, but persistence and non-renewable sourcing keep alignment low.
How does Ammonium Acryloyldimethyltaurate/Beheneth-25 Methacrylate Crosspolymer work chemically?
The molecule is a high-molecular-weight, crosslinked anionic associative polymer with long ethoxylated C22 hydrophobes that swell in water and create a viscosity-building network. It is commonly used around 0.2% to 2%, works best in mildly acidic to neutral systems, and can lose viscosity with high electrolyte loads or high levels of cationic materials.
Last updated 2026-05-13