Science
Mechanism of Action
It forms a hydrophobic film on the skin, providing water and rub-off resistance for long-lasting effects. In formulas, it stabilizes emulsions by entrapping oils and pigments, improving spreadability and providing a non-tacky after-feel.
Research
Clinical Evidence
Unknown confidenceN/A
Key findings
- 01 High concentrations (21%) of the monomer 2-ethylhexyl acrylate were carcinogenic in C3H mice, but lower concentrations (2.5%) were not, and the polymerized copolymer form is considered inert. (CIR Amended Safety Assessment, 2018)
- 02 Patch tests for acrylate monomer allergies (e.g., methyl methacrylate at 2%, ethyl acrylate at 0.1%) indicate that residual monomers, not the polymer, are the primary concern for sensitization. (DermNet / North American Standard Series)
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Typically supplied as a hydrophobic powder or dispersion, it becomes water-soluble or dispersible upon neutralization (e.g., with TEA, NaOH) and is highly stable across a wide pH range.
Conflicts
- Cationic ingredients
- Strong electrolytes or high salt concentrations
Safety
Safety Profile
The CIR Expert Panel concluded the copolymer is safe when formulated to be non-irritating. The main safety concern is the presence of toxic residual monomers, though these are typically maintained at ppm levels in cosmetic grade materials.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This highly functional polymer significantly enhances product water-resistance and texture, demonstrating an excellent safety profile for all skin types when properly formulated.
Related
Similar Ingredients
Finding similar ingredients…
References
Sources