Science
Mechanism of Action
On the skin, Polyurethane-24 establishes a non-occlusive film, which aids in reducing transepidermal water loss and smoothing skin texture. Its emulsifying properties assist in stabilizing complex formulations, while its barrier-forming capacity provides external protection and improves skin's supple feel.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
This ingredient is typically supplied as an aqueous dispersion, emulsion, or solution, indicating its water solubility. While general polyurethane chemistry supports stability across various pH ranges, the precise optimal pH for Polyurethane-24 has not been explicitly detailed.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has deemed Polyurethane-24, among a broader group of polyurethane ingredients, safe for use in cosmetic applications, provided formulations are non-sensitizing. This assessment specifically noted the absence of detectable residual isocyanates or other monomer precursors, which are often associated with occupational dermal and respiratory sensitivities.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Polyurethane-24 is a valuable multi-functional ingredient that enhances skin hydration and protection through film-forming and emulsifying properties, supported by a favorable safety profile from the CIR Expert Panel.
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References
Sources