Science
Mechanism of Action
This ingredient functions by creating a continuous, often flexible, film on the skin's surface, which can contribute to a smooth and refined appearance. Furthermore, it acts as an effective thickening agent, imparting the desired viscosity to liquid or semi-liquid products. As an emulsifier, it plays a critical role in stabilizing oil and water-based components, preventing separation and ensuring a homogeneous distribution of active ingredients.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
While direct pH stability data for Polyacrylate Crosspolymer-9 is not explicitly provided, related polyacrylate crosspolymers such as Polyacrylate Crosspolymer-6 and -14 demonstrate stability across a wide pH range of 2 to 8, suggesting similar robust performance.
Safety
Safety Profile
The CIR Expert Panel has determined that crosslinked alkyl acrylates, a category including Polyacrylate Crosspolymer-9, are safe under current conditions of use and concentration. This safety is contingent upon the ingredient not being polymerized in benzene and the final formulation being designed to minimize or avoid irritation. Chemically, it is a copolymer of t-butylaminoethyl methacrylate and carboxyethyl acrylate, precisely crosslinked with pentaerythritol tetraacrylate and a hexafunctional acrylate.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Polyacrylate Crosspolymer-9 is a valuable formulation ingredient, precisely improving product stability, texture, and film-forming characteristics, with established safety parameters when appropriately formulated.
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