Science
Mechanism of Action
It electrostatically binds to the negatively charged keratin of the skin via its protonated amino groups. This forms a thin, protective film that smooths the surface and provides a conditioned feel without oiliness.
Research
Clinical Evidence
Medium confidence0.5%
Key findings
- 01 Clinical studies indicate concentrations from 0.1% to 10% effectively condition skin and reduce surface defects. When combined with silicones, it significantly improves skin appearance, reducing wrinkles and enhancing smoothness.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
The copolymer is water-soluble and most stable above pH 6.0, supplied as a 23-30% aqueous solution. It aids in stabilizing silicone dispersions and enhancing active ingredient deposition.
Synergies
- Silicones (e.g., dimethicone/dimethiconol) for enhanced wrinkle reduction and skin smoothing.
Conflicts
- Strongly anionic polymers (may cause precipitation)
- High concentrations of certain anionic surfactants (can interfere with deposition)
- Strongly acidic environments (pH < 5.0 may cause instability or reduced solubility)
Safety
Safety Profile
Though not CIR-reviewed, it is an established INCI, non-irritating, and considered generally safe up to 10% in leave-on and rinse-off formulations based on patent and commercial data.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A valuable ingredient for enhancing skin texture, providing a smooth and conditioned feel, and reducing the appearance of wrinkles and surface imperfections.
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References
Sources