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ACRYLATES/STEARYL ACRYLATE/ETHYLAMINE OXIDE METHACRYLATE COPOLYMER.

Valuable / FILM FORMING, HAIR FIXING

This amphoteric copolymer forms a flexible, water-resistant film on keratinic fibers and skin. It acts as a conditioning agent, improving humidity resistance and providing structural hold for various personal care applications.

film forming conditioning antistatic viscosity controlling hair fixing barrier-forming

Science

Its ethylamine oxide units carry a cationic charge that binds to negatively charged keratin, offering adhesion and anti-static effects. Hydrophobic stearyl acrylate segments form a surface film, reducing moisture loss and frizz, while its large molecular weight ensures surface retention.


Research

High confidence
Effective range 1–15%
Optimal

4.5%

Key findings

  1. 01 A 4.5% concentration demonstrated effective film-forming, improving humidity resistance and providing flexible hold on keratinic fibers.

Transparency

Not commonly dusted

The Formula

Solubility
Both
Optimal pH 6.5 – 11
0 7 14

Stability

Highly stable in alkaline environments (pH 8-11) and typically supplied as a liquid dispersion (pH 6.5-8.0). It tolerates heat up to 40°C for long-term storage.

Conflicts

  • Strongly anionic thickeners may cause complexation
  • Highly acidic environments (below pH 4) may affect film flexibility and solubility

Safety

CIR Status
Safe as used
Max tested
15%
Sensitization risk Low

This large, high-molecular-weight polymer is considered non-toxic and non-penetrating. Formulations should maintain residual monomer levels, such as acrylic acid, below 100 ppm to mitigate potential irritation.


Your Skin

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Valuable

A valuable amphoteric polymer that safely provides effective film-forming, conditioning, and antistatic benefits across all skin and hair types, enhancing product performance and feel.


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