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Moumoujus

CI 12150.

Avoid CAS 1229-55-6 / COLORANT

CI 12150, also known as Solvent Red 1 or Sudan R, is a synthetic azo dye. It was historically used for its red-orange coloring properties in oil-based cosmetic formulations.

Summary

Colorant

Science

Mechanism of Action

This highly lipophilic synthetic azo dye functions by imparting a red-orange color due to its excellent solubility in oils, fats, and organic solvents, making it suitable for oil-based cosmetic applications.

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

Conflicts

  • Incompatible with legal cosmetic formulations in many regions due to safety concerns and regulatory bans.

Safety

Safety Profile

CIR Status
Not reviewed
Max tested
0%
Sensitization risk High

CI 12150 is widely banned in cosmetics globally (e.g., US FDA) due to potential carcinogenic properties and concerns about carcinogenic amine formation. It is also identified as an irritant to skin, eyes, and the respiratory system.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Avoid

Due to its classification as a non-permitted cosmetic ingredient with potential carcinogenic properties and high irritation risk, CI 12150 is strongly advised against for any skincare application.

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