Science
Mechanism of Action
This association-type polymer thickens aqueous systems by forming hydrophobic networks between its steareth-50 chains, increasing viscosity and stabilizing emulsions. On the skin, it forms a continuous, flexible film that aids moisture retention and delivers a soft after-feel.
Research
Clinical Evidence
High confidenceN/A
Key findings
- 01 Clinical studies on similar acrylate copolymers and patch tests at 1.0% demonstrate low potential for skin irritation and sensitization.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Highly stable in aqueous systems; viscosity typically increases upon neutralization to pH ~6.0-7.0. It is often supplied as a liquid emulsion requiring pH adjustment to swell.
Conflicts
- High concentrations of electrolytes/salts (can cause viscosity loss)
- Cationic surfactants or polymers (may cause precipitation due to anionic nature of the copolymer)
Safety
Safety Profile
The CIR Expert Panel deemed this copolymer safe in current uses and concentrations when formulated to be non-irritating. A maximum concentration of 25% is advised for leave-on dermal products.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A valuable rheology modifier and film-former, widely compatible and well-tolerated, enhancing product texture and skin feel.
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