Science
Mechanism of Action
This copolymer works by forming a uniform, flexible film on the skin, which can help to reduce transepidermal water loss and offer environmental protection. Beyond its film-forming capability, it acts as an effective emulsifier and stabilizer, ensuring the homogeneous blending of oil and water phases in complex formulations. Furthermore, it functions as a rheology modifier, providing thickening and gelling properties that contribute to the creation of non-sticky, supple product textures.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
This ingredient type maintains effective and steady performance across a broad pH spectrum, ranging from 3 to 12.
Conflicts
- Cationic ingredients (due to its inherent anionic nature)
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has concluded that this class of acrylates copolymers is safe for cosmetic use when formulated to be non-irritating. A critical aspect of its safety profile is the necessity to maintain residual monomer levels as low as possible. For a closely related copolymer, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, CIR approved use up to 3.6-4.3% in rinse-off products and up to 3% in leave-on products. It is important to note that EWG highlights 'high' contamination concerns for Hydroxyethyl Acrylate/Methoxyethyl Acrylate Copolymer, a very similar ingredient, emphasizing the need for stringent quality control.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This versatile copolymer is valuable for enhancing product texture, stability, and providing a protective film, provided it is meticulously formulated to be non-irritating and minimize monomer levels.
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References
Sources