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AMMONIUM ETHYLENE/MA COPOLYMER.

Valuable CAS 9007-69-6 / EMULSION STABILISING, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

A high-molecular-weight synthetic polymer that excels at microencapsulation technology in skincare formulations. This multifunctional ingredient creates protective shells around active compounds while providing emulsion stabilization and controlled-release benefits across all skin types.

emulsion stabilizing cleansing emulsifying film forming microencapsulation

Science

Functions as a polyionic polymer that forms stable protective barriers around active ingredients through microencapsulation technology, enabling controlled release while providing surfactant properties that enhance emulsion stability and film formation on skin surface.


Research

Medium confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 Independent laboratory testing demonstrated no evident skin irritation when used in topical cosmetic applications

Transparency

Not commonly dusted

Primarily used as a functional polymer for microencapsulation rather than marketing appeal, making dusting unlikely


The Formula

Solubility
Water
Optimal pH 5.5 – 8.5
0 7 14

Stability

Exhibits pH-responsive behavior with maximum stability at neutral pH 7.0, shows accelerated release properties at pH extremes within working range

Synergies

  • fragrance compounds
  • pigments
  • sensitive actives requiring protection

Conflicts

  • strong oxidizing agents
  • highly cationic ingredients

Safety

CIR Status
Safe as used
Sensitization risk Low

Categorized under broader safety assessment for acrylates copolymers and maleic anhydride copolymers, approved by PCPC for INCI listing in 2018


Your Skin

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

Our Assessment

Valuable

A technically sophisticated polymer that enhances product performance through microencapsulation technology while maintaining excellent safety and compatibility across all skin types.


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