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Moumoujus

POLYURETHANE-48.

Valuable / FILM FORMING

POLYURETHANE-48 is a sophisticated film-forming polymer engineered to create an ultra-thin, continuous barrier on the skin. This invisible shield is designed to enhance skin resilience by providing protection against external stressors such as environmental pollutants and chemical factors.

Summary

film forming

Science

Mechanism of Action

Functioning as a high-performance film-forming agent, Polyurethane-48 deposits a continuous, imperceptible polymeric film upon application. This meticulously balanced film exhibits optimal cohesion and adhesion, allowing it to effectively reinforce the skin's natural defenses and mitigate potential damage from external aggressors like chemical exposure, UV radiation, and pollution.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH 5.5 – 8.5
0 7 14

Stability

Polyurethane-48 is typically supplied as an aqueous polyurethane dispersion, forming a colloidal system. Optimal stability for general polyurethane products is observed within a pH range of 5.5 to 8.5. While similar polyurethanes, such as Polyurethane-14, show stability across a broader pH range (e.g., 4 to 9), maintaining the specified range is recommended. Extreme temperatures should be avoided to preserve ingredient integrity.

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel rigorously assessed the safety of 66 polyurethane ingredients, including Polyurethane-48. They concluded these ingredients are safe for cosmetic use under current practices and concentrations when formulated to be non-sensitizing and free of detectable residual isocyanates or other monomers. While no specific maximum concentration for Polyurethane-48 was reported, related polyurethanes have established safe usage levels, such as Polyurethane-33 at 7.5% in leave-on dermal products and Polyurethane-1 at 15% in nail formulations.

Your Skin

Skin Compatibility

No Normal
No Dry
No Oily
No Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

Polyurethane-48 is a valuable film-forming ingredient that provides a protective barrier against environmental aggressors with an established safety profile, though specific clinical efficacy data directly on skin for this particular compound are not extensively detailed.

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