Science
Mechanism of Action
This crosslinked polymer functions by creating a cohesive structure within powdered products, effectively serving as a binding agent to maintain product integrity. On the skin, it acts as a conditioning agent, working to improve the state of dry or damaged skin by minimizing flaking and restoring essential suppleness for a healthier feel.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Related polyurethanes, such as Polyurethane-14, demonstrate stability within a pH range of 4 to 9, showing no significant hydrolysis. They are stable under typical environmental conditions and do not degrade when incorporated into cosmetic products at concentrations between 5% and 15%.
Conflicts
- Residual isocyanate monomers (must be absent from the final product)
- High concentrations of sensitizers like methylisothiazolinone (if supplied in a pre-mixed form)
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has deemed polyurethanes, including IPDI/POLY(1,4-BUTANEDIOL)-14 CROSSPOLYMER, safe for use in cosmetics provided they are formulated to be non-sensitizing. A critical restriction is the absolute absence of residual isocyanate monomers in the final product, as diisocyanates are known to cause occupational asthma, irritant, and allergic contact dermatitis. While no specific maximum concentration is set for this exact ingredient, related Polyurethane-14 is stable in formulations up to 15%.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This crosslinked polymer is a valuable multi-functional ingredient for enhancing product texture and skin condition, provided stringent formulation controls are maintained to ensure the absence of residual isocyanate monomers.
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