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Moumoujus

POLYURETHANE-67.

Optional CAS 1334242-38-4 / NOT REPORTED

POLYURETHANE-67 is a synthetic polymer primarily functioning as a surface modifier in cosmetic formulations. As a member of the polyurethane family, it contributes to product texture and film-forming capabilities, enhancing the overall feel and stability of skincare preparations.

Summary

Surface modifier Film former Binder Hair fixative Plasticizer

Science

Mechanism of Action

This ingredient operates as a surface modifier, altering the tactile properties of skin or the cosmetic product itself. Polyurethanes generally form a flexible film upon drying, which can provide barrier support, texture enhancement, or serve as a binder.

Research

Clinical Evidence

Insufficient-data confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Unknown
Optimal pH N/A
0 7 14

Stability

Polyurethane-67 can be supplied as an emulsion or solution. Its stability can be compromised by high pH (alkaline) environments, which may lead to degradation, particularly for polyester-based polyurethanes. Polyether polyurethanes typically exhibit greater resistance to hydrolysis. For context, Polyurethane-35 is stable within a pH range of 4.5-7.0.

Conflicts

  • High pH environments (alkaline conditions) can cause degradation, especially with polyester-based polyurethanes.
  • Strong acids may compromise its stability.
  • Certain ketones, such as Acetone and Methyl Ethyl Ketone, can lead to degradation.
  • Some aromatic hydrocarbons, including Benzene and Toluene, may be incompatible.

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Moderate

The Cosmetic Ingredient Review (CIR) Expert Panel has deemed polyurethanes, including POLYURETHANE-67, safe for cosmetic use when formulated to be non-sensitizing. Formulators must exercise caution regarding raw material solutions, which may contain potential sensitizers like methylisothiazolinone (MI), to avoid exceeding safe concentrations. No specific SCCS opinion for POLYURETHANE-67 has been identified. INCIDecoder rates its irritancy as medium.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Optional

POLYURETHANE-67 is an optional functional ingredient, primarily acting as a surface modifier and film former, deemed safe for use when properly formulated to avoid sensitization risks.

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