Science
Mechanism of Action
This ingredient functions by regulating the rheological properties of a cosmetic matrix, effectively controlling its viscosity. It contributes antistatic action to mitigate static charge and acts as a chelating agent, binding metal ions to enhance product stability. As a PEG derivative, it serves to improve formulation consistency and supports skin hydration by drawing moisture from the environment.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Polyethylene glycols generally offer a broad range of solubility properties and are well-tolerated by the skin. While specific optimal pH data for this copolymer is not available, it is noted that some PEG-polypeptide block copolymers may self-assemble effectively at moderate to high pH, potentially destabilizing in acidic conditions below pH 5.5. Polystyrene components are incompatible with strong oxidizing agents.
Conflicts
- strong oxidizing agents
Safety
Safety Profile
While OCTYL POLYSTYRENE OXIDE/PEG-10 COPOLYMER itself does not have a dedicated CIR review, related ingredient groups have been assessed. 'Polyoxyalkylene Siloxane Copolymers' and 'Styrene and Vinyl-type Styrene Copolymers' have been concluded as safe for cosmetic applications at current uses and concentrations. Due to its inherently large molecular size, percutaneous absorption is not anticipated. A theoretical concern regarding residual styrene monomer, a possible carcinogen, is mitigated by the expectation that such levels would be below concern due to the polymer's size inhibiting absorption.
Your Skin
Skin Compatibility
Our Assessment
Verdict
OCTYL POLYSTYRENE OXIDE/PEG-10 COPOLYMER is a valuable multifunctional ingredient, crucial for optimizing formulation texture and stability while contributing humectant benefits, with a generally low sensitization risk based on comprehensive assessments of related polymer classes.
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