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Moumoujus

CI 11920.

Avoid CAS 2051-85-6 / COLORANT

CI 11920 is an azo dye primarily used as an orange colorant in cosmetics. Its use is highly restricted due to safety concerns and potential for degradation into harmful compounds.

Summary

colorant

Science

Mechanism of Action

This ingredient functions by imparting an orange hue. As an azo dye, it is susceptible to photocatalytic degradation, which can form impurities, including potentially carcinogenic aromatic amines.

Research

Clinical Evidence

Insufficient-data confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

No specific optimal pH range for stability was found, though it is soluble in alkaline solutions. It is prone to photocatalytic degradation and should be stored dry at 15-25 °C.

Conflicts

  • light
  • oxidizing agents

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk High

Lacking a direct CIR safety assessment, CI 11920 is forbidden in EU hair dyes due to concerns about photocatalytic degradation into potentially carcinogenic aromatic amines. Its FDA cosmetic status is unknown, and it faces high use restrictions.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Avoid

This ingredient is not recommended for skincare due to significant safety concerns, high irritancy, and potential degradation into carcinogenic compounds.

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