Science
Mechanism of Action
As a polymeric compound, Polyurethane-87 functions primarily by forming a cohesive, non-occlusive film upon application to the skin. This layer provides a physical barrier that can enhance product adherence, improve wear time, or offer a subtle aesthetic finish.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
As a polymer intended for film formation, Polyurethane-87 is not characterized by particulate dusting; its function is to create a cohesive layer.
The Formula
Formulation
Stability
The hydrolytic stability of polyurethanes in general can be influenced by pH. Polyester-based polyurethanes may degrade in acidic environments, while polyether-based ones might lead to an increase in pH. Specific optimal pH ranges for Polyurethane-87 are not detailed.
Conflicts
- Strong acids
- Strong bases
- Highly polar solvents (e.g., dimethylformamide, dimethylsulphoxide, N-methylpyrrolidone) (general for some polyurethanes)
Safety
Safety Profile
The CIR Expert Panel considers the broad class of polyurethanes safe, subject to restrictions concerning residual monomers. They recommend a Quantitative Risk Assessment (QRA) to mitigate potential sensitization risks from these residues, especially when combined with other sensitizing ingredients. A specific CIR assessment for Polyurethane-87 is unavailable.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Polyurethane-87 is expected to function as a film-former; however, specific efficacy, stability, and safety data for this particular variant are limited, requiring further dedicated assessment for precise application.
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