Science
Mechanism of Action
Forms a continuous, hydrophobic film upon drying that acts as a moisture barrier and enhances pigment adhesion. The polymer creates cross-links between surface proteins, providing structural hold and antistatic properties while preventing product migration and wash-off.
Research
Clinical Evidence
High confidence1%
Key findings
- 01 Significantly enhanced water-wash-off resistance and reduced color transfer in sunscreen and makeup applications
- 02 Demonstrated excellent dermatological compatibility with irritation scores below 1.5 in HET-CAM testing
Transparency
Dusting Analysis
This ingredient serves a specific functional purpose as a film-former and is not typically subject to dusting practices in skincare formulations.
The Formula
Formulation
Stability
Remains stable across pH 3.0-11.0 but achieves optimal film flexibility between pH 3.5-7.0. Requires neutralization with organic bases like Aminomethyl Propanol for water solubility.
Synergies
- Other styling polymers for enhanced moisture resistance
Conflicts
- High concentrations of cationic surfactants
- Divalent metal ions (Calcium, Zinc)
- Strongly acidic environments without neutralization
Safety
Safety Profile
High molecular weight prevents skin penetration, making it non-sensitizing and non-irritating. Grouped with other MA copolymers recognized as safe in cosmetic applications.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An effective film-forming polymer that delivers proven water-resistance and longevity benefits with excellent safety and universal skin compatibility.
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References
Sources