Science
Mechanism of Action
This ingredient operates by forming a non-occlusive polymeric film on the skin's surface, which contributes to a smoother tactile experience and can impart water resistance to the formulation. Within the product matrix, it acts as a thickening agent, increasing viscosity to improve texture and spreadability. Its emulsifying and stabilizing capabilities ensure the uniform binding of disparate oil and water phases, promoting consistent product distribution and extending the product's functional lifespan. Furthermore, it can suspend insoluble particles, contributing to overall formulation integrity and performance.
Research
Clinical Evidence
High confidenceN/A
Transparency
Dusting Analysis
As a polymer typically used in solution or dispersion, Potassium Acrylates Copolymer is not commonly associated with 'dusting' as an efficacy concern for active ingredients, but rather as a functional excipient for rheology and film-forming.
The Formula
Formulation
Stability
The non-salt form of Acrylates Copolymer becomes water-soluble or dispersible upon complete neutralization, typically achieved with a suitable water-soluble base like potassium hydroxide. Optimal performance for thickening is generally observed within a pH range of 5.0 to 8.0, though thickening can extend up to pH 11. It exhibits high stability across a wide range of temperatures, ideally below 70°C for optimal integrity, and demonstrates robust resistance to shear forces.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has concluded that 126 acrylates copolymers, including Potassium Acrylates Copolymer, are safe for cosmetic use under current practices and concentrations, provided formulations are non-irritating. Human repeated insult patch tests for the broader Acrylates Copolymer category indicate it is neither an irritant nor a sensitizer at concentrations up to 25% in dermal contact products. The FDA generally respects CIR conclusions, and the European Commission's SCCS has also assessed this substance, with potential restrictions related to purity criteria or maximum concentration as per Annex III of the EC Cosmetics Regulation.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Potassium Acrylates Copolymer is a valuable ingredient for precision skincare, offering critical functional benefits in formulation stability, texture enhancement, and a smooth skin feel, all while demonstrating a low risk of irritation across diverse skin types.
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