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Moumoujus

CI 27290.

Avoid CAS 5413-75-2 / COLORANT, HAIR DYEING

CI 27290, also known as Acid Red 73, is a synthetic colorant that imparts a yellow-light red hue. Its use in cosmetics is largely restricted, particularly in the EU where it is prohibited.

Summary

colorant

Science

Mechanism of Action

This ingredient functions purely as a colorant, providing a yellow-light red hue to formulations. It possesses no known biological mechanism of action or therapeutic skin benefits beyond its coloring properties.

Research

Clinical Evidence

Insufficient-data 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

Acid Red 73 demonstrates good chemical stability across various processing conditions, including temperature and moderate pH changes. However, it degrades with prolonged exposure to strong light/UV and precipitates at extreme pH levels (strong acids/alkalis).

Conflicts

  • Copper ions
  • Iron ions
  • Strong acids
  • Strong alkalis
  • Strong light/UV radiation

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk High

This ingredient has not been reviewed by the CIR. It is prohibited in EU cosmetics and its use is listed as 'None' for general cosmetics in the US, indicating significant regulatory concerns.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Avoid

Due to significant regulatory prohibitions in major markets, CI 27290 should be avoided in cosmetic formulations.

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