Science
Mechanism of Action
Operating within formulations, POLYURETHANE-81 functions primarily as a film-former, binder, and surface modifier. Its action contributes to the structural integrity and aesthetic finish of cosmetic products rather than directly influencing skin biological processes.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
POLYURETHANE-81 is primarily a film-former and binder; there is no indication it is an ingredient commonly associated with efficacy dusting.
The Formula
Formulation
Stability
Polyurethane materials, including POLYURETHANE-81, exhibit general resilience to both acidic and alkaline environments. Certain polyurethanes have demonstrated stability within a pH range of 4 to 9, suggesting a broad compatibility profile. The precise chemical resistance is contingent on the specific polyurethane type, its concentration, ambient temperature, and duration of exposure.
Safety
Safety Profile
The CIR Expert Panel concluded that POLYURETHANE-81, along with 65 other polyurethane ingredients, is safe for use in cosmetic products under current practices. This safety is contingent upon the ingredient being formulated to be non-sensitizing and free from detectable residual isocyanates or other monomers. Formulators must also exercise caution regarding raw material solutions, which may contain sensitizers like methylisothiazolinone (MI), to prevent unintended accumulation of such substances in the final product.
Your Skin
Skin Compatibility
Our Assessment
Verdict
While integral for formulation stability and aesthetics, POLYURETHANE-81 lacks specific clinical data regarding direct benefits to skin.
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References
Sources