Science
Mechanism of Action
Operating as finely structured thermoplastic microspheres, this copolymer effectively absorbs excess substances, such as sebum, contributing to a matte finish. Beyond absorption, it forms a lightweight film, improving the tactile feel of formulations by imparting a smooth, comfortable sensation on the skin. Its micro-particulate nature also functions as a lightweight filler, enhancing product aesthetics and potentially contributing to increased hair volume in specific applications.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
This copolymer exhibits robust stability. It is notably stable across a broad pH range, including strong acids and bases, under typical ambient conditions, primarily due to the inherent stability of its Poly(methyl methacrylate) component. While insoluble in water, its 'oil soluble' classification refers to its functional compatibility within the oil phase for optimal performance, rather than true dissolution.
Conflicts
- strong oxidants
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Panel has assessed this class of acrylates copolymers as safe for use in cosmetic applications, provided formulations minimize irritation. SkinSAFE further validates its gentle profile, classifying it as 'Irritant Free,' 'Teen SAFE,' 'Lip SAFE,' 'Baby SAFE,' and 'Eyelid SAFE.' While specific maximum concentrations for the copolymer are not stipulated, rigorous control ensures residual monomers like methyl methacrylate (MMA) are maintained at low parts per million (e.g., typically below 100 ppm).
Your Skin
Skin Compatibility
Our Assessment
Verdict
A valuable polymeric ingredient, this copolymer excels in enhancing product texture, absorbing excess oil, and ensuring broad skin compatibility while maintaining a strong safety profile.
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