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Moumoujus

POLYURETHANE-55.

Valuable / NAIL CONDITIONING

POLYURETHANE-55 is a multifunctional polymer ingredient primarily used in skincare for its emulsifying, moisturizing, and film-forming properties. It aids in product stability and contributes to a smoother, protected skin feel. This ingredient enhances skin softness and elasticity.

Summary

Emulsifier Moisturizer Film-former Protective barrier Aesthetic enhancer Thickener

Science

Mechanism of Action

This ingredient functions as an emulsifier, expertly blending immiscible water and oil phases to create stable formulations. On the skin, it acts as a moisturizer, contributing to enhanced skin softness and elasticity. It also forms a protective barrier on the skin's surface, helping to shield against external environmental aggressors.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH N/A
0 7 14

Stability

Polyurethanes generally exhibit stability under normal environmental conditions. While specific pH data for POLYURETHANE-55 is not provided, related polyurethanes such as Polyurethane-14 show stability within a pH range of 4 to 9. Polyurethane-35 demonstrates stability in cosmetic products at concentrations of 5% to 15% within an optimal pH range of 4.5-7.0. This ingredient is incompatible with strong oxidizing agents.

Conflicts

  • strong oxidizing agents

Safety

Safety Profile

CIR Status
Safe with restrictions
Sensitization risk Moderate

The Cosmetic Ingredient Review (CIR) Expert Panel has concluded that polyurethanes, including POLYURETHANE-55, are 'safe in the practices of use and concentration' when formulated to be non-sensitizing. A critical restriction is that the ingredient must be supplied with no residual isocyanate or other monomers, as these are associated with occupational asthma, irritant and allergic contact dermatitis, and skin irritation. Formulators are advised to exercise caution if polymers are supplied with other sensitizers, such as methylisothiazolinone (MI), to prevent combining multiple solutions that could lead to a significant sensitizing concentration.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

POLYURETHANE-55 is a valuable ingredient for enhancing formulation stability, skin hydration, and environmental protection, provided it is precisely formulated to meet strict safety guidelines regarding monomer purity and sensitizer avoidance.

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