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Moumoujus

M-AMINOPHENOL SULFATE.

Avoid CAS 68239-81-6 / HAIR DYEING

M-Aminophenol Sulfate serves as an oxidative coupler crucial for permanent hair dye formulations, facilitating the formation of color within the hair fiber. This ingredient is not intended for use in topical skincare products.

Summary

Hair Dyeing

Science

Mechanism of Action

This compound primarily functions by reacting with developer ingredients, such as hydrogen peroxide, to generate permanent color molecules inside the hair shaft. It does not exhibit any known mechanism beneficial for cutaneous biology or skin health.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

M-Aminophenol Sulfate is specifically designed for hair coloration and lacks any recognized benefits for the skin, rendering its inclusion in skincare formulations fundamentally inappropriate rather than merely 'dusting.'

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

Typically used in oxidative hair dye formulations, requiring mixing with hydrogen peroxide for activation and color development.

Conflicts

  • strong reducing agents
  • aromatic p-amino compounds
  • azo dyes

Safety

Safety Profile

CIR Status
Safe with restrictions
Max tested
1%
Sensitization risk High

The Scientific Committee on Consumer Products (SCCNFP) deemed m-Aminophenol safe for use in permanent hair dyes at an in-use concentration of 1.0% (from a 2.0% formulation pre-mix). Products containing this substance must prominently display a warning regarding the risk of sensitization. The CIR Expert Panel concluded that in vitro mutagenicity results were not pertinent for topical hair dye applications, given the absence of observed cancer induction with topical use.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Avoid

M-Aminophenol Sulfate is a hair dye component associated with a high risk of skin sensitization and irritation, offering no discernible benefits for skin health, and therefore should be excluded from skincare formulations.

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