Get a Free 5ml Mini Now Free 5ml Mini With Every Order of The Mantle
Moumoujus

POLYURETHANE-84.

Avoid CAS 1436463-63-6 / NAIL CONDITIONING

POLYURETHANE-84 is a synthetic polymer primarily recognized for its application in nail care, where it conditions and enhances the nail's appearance. Despite potential general functions of polyurethanes in skincare, this specific variant faces significant regulatory restrictions, notably being forbidden for use in cosmetic products within Europe.

Summary

Nail Conditioning Agent

Science

Mechanism of Action

As a specific polyurethane, POLYURETHANE-84 functions primarily as a nail conditioning agent, contributing to the improved aesthetic and health of nails. Broadly, polyurethanes can form protective films, thereby enhancing the skin's barrier function, reducing surface roughness, and imparting a softer, more elastic feel. They can also act as a matrix to facilitate the delivery of other cosmetic ingredients.

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 N/A
0 7 14

Stability

POLYURETHANE-84 is noted for its water solubility. However, the hydrolytic stability of polyurethanes can vary considerably depending on their specific chemical architecture; for instance, polyester-based types are generally more prone to degradation in aqueous environments than polyether-based counterparts, which can exhibit enhanced resistance, particularly to alkaline conditions. Exposure to strong acids or alkaline solutions can induce degradation, and certain saturated hydrocarbons may cause moderate swelling.

Conflicts

  • Strong acids
  • Alkaline solutions
  • Certain saturated hydrocarbons

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk Unknown

While the Cosmetic Ingredient Review (CIR) Expert Panel has broadly deemed 66 polyurethane ingredients safe under specific conditions—namely, when formulated to be non-sensitizing and free of residual isocyanates—POLYURETHANE-84 is explicitly classified as 'Regulated, Forbidden in Europe'. No specific safety assessment from the Scientific Committee on Consumer Safety (SCCS) or dedicated FDA cosmetic status for POLYURETHANE-84 has been identified.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Avoid

Given its classification as 'Forbidden in Europe' and the absence of specific clinical data supporting skin benefits, POLYURETHANE-84 is unequivocally an ingredient to avoid in precision skincare formulations.

Related

Similar Ingredients

Finding similar ingredients…