Science
Mechanism of Action
Dimethyl Acrylamide/Hydroxyethyl Acrylate/Methoxyethyl Acrylate Copolymer operates by forming a durable, protective film on the skin. This polymeric film acts as a physical barrier, enhancing the skin's ability to retain moisture and providing a waterproof effect. Additionally, it serves to adjust the viscosity of cosmetic formulations, contributing to their stability and sensory properties.
Research
Clinical Evidence
Medium confidence7%
Transparency
Dusting Analysis
The Formula
Formulation
Stability
This copolymer exhibits good solubility in both water and ethanol, with high solubility noted in LPG (liquefied petroleum gas), suggesting versatility in various solvent systems.
Conflicts
- Avoid use with nitrosating systems.
- Requires a minimum purity of 99%.
- Finished products must not exceed a nitrosamine content of 50 µg/kg.
- Must be stored in nitrite-free containers.
- Finished products should not exceed a secondary amine content of 0.5% (referring to monoalkylamines, monoalkanolamines, and their salts).
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel deems this ingredient safe at current usage concentrations and practices. Its large molecular weight prevents dermal absorption, classifying it as insoluble and unlikely to contribute to nitrosamine or nitrosamide formation. Strict formulation guidelines include ensuring acrylamide monomer content does not exceed 5 ppm, and maintaining very low nitrosamine and secondary amine levels in the final product.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This copolymer is a valuable ingredient for enhancing product stability and providing effective, safe moisture retention through its film-forming properties across various skin types.
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References
Sources