Science
Mechanism of Action
Upon drying, it forms a continuous, flexible, and hydrophobic film that helps products resist water and wear. Additionally, it functions as a rheology modifier to increase viscosity and prevent ingredient separation.
Research
Clinical Evidence
High confidenceN/A
Key findings
- 01 An aqueous mixture of Ammonium Acrylates Copolymer was found to be practically non-irritating in dermal and ocular testing. (FDA/CIR Amended Safety Assessment of Acrylates Copolymers, 2018)
- 02 Human repeated insult patch test (HRIPT) on 47 subjects showed no evidence of irritation or sensitization for acrylates copolymer dilutions. (Cosmetic Ingredient Review (CIR) Safety Assessment)
Transparency
Dusting Analysis
This ingredient is not commonly associated with the phenomenon of 'dusting' in formulations.
The Formula
Formulation
Stability
It is supplied as a water-based emulsion, stable in alkaline conditions. Significant drops in pH can lead to destabilization or precipitation.
Conflicts
- Low pH environments (acidic solutions)
- Cationic surfactants
- Multivalent metal ions (e.g., Calcium, Magnesium) which may cause precipitation
Safety
Safety Profile
The CIR Expert Panel found it safe for cosmetic use when formulated to be non-irritating. Minimizing residual toxic monomers like 2-ethylhexyl acrylate is crucial.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A highly valuable ingredient for enhancing product longevity and water resistance across various skin types, supported by a strong safety profile.
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