Science
Mechanism of Action
This advanced copolymer functions by depositing a thin, cohesive layer upon application, forming a film that can enhance the skin's surface texture and provide environmental shielding.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Safety
Safety Profile
While a direct Cosmetic Ingredient Review (CIR) report for POLYBUTYLENE GLYCOL/MDI COPOLYMER was not identified, the broader category of polyurethanes, frequently derived from MDI, has been assessed as safe for cosmetic applications by the CIR. The manufacturing process for MDI effectively minimizes residual MDA (a potential carcinogen) to negligible levels, which are further reduced during the synthesis into polyurethanes. For some analogous polyurethanes, maximum use concentrations have been reported up to 15% in nail products and 7.5% in other skin care preparations.
Your Skin
Skin Compatibility
Our Assessment
Verdict
While recognized for its film-forming capabilities, comprehensive specific clinical efficacy and detailed skin compatibility data for this exact ingredient are currently limited.
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References
Sources