Get a Free 5ml Mini Now Free 5ml Mini With Every Order of The Mantle
Moumoujus

3-METHYLAMINO-4-NITROPHENOXYETHANOL.

Optional CAS 59820-63-2 / HAIR DYEING

A nitrophenol-derived direct dye compound that primarily functions as a semi-permanent hair colorant by depositing pigment onto the hair cuticle. This synthetic aromatic ingredient demonstrates low skin penetration rates and minimal irritation potential in clinical evaluations.

Summary

hair dyeing colorant

Science

Mechanism of Action

Functions as a direct-depositing colorant that adheres to external surfaces rather than penetrating deeply into tissues, with studies showing only 0.42% percutaneous absorption of applied doses

Research

Clinical Evidence

High confidence
Effective range 0.15–1%
Optimal

0.15%

Key findings

  1. 01 CIR safety assessment at 0.15% maximum use concentration in hair dye formulations
  2. 02 Human skin penetration study demonstrating 0.42% absorption rate
  3. 03 Murine LLNA testing showing non-sensitizing properties at 2.0% concentration

Transparency

Dusting Analysis

Not commonly dusted

Primarily used in hair care applications with established safety thresholds; not commonly found in misleading concentrations

The Formula

Formulation

Solubility
Water
Optimal pH 3 – 10
0 7 14

Stability

Maintains stability in aqueous cosmetic bases but shows sensitivity to strong reducing agents which can cause color degradation

Conflicts

  • Strong reducing agents
  • Strong oxidizing agents

Safety

Safety Profile

CIR Status
Safe as used
Max tested
1%
Sensitization risk Low

CIR Panel concludes safety at current use practices up to 0.15%; EU SCCS authorizes up to 1.0% in finished products

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
No Sensitive
Irritancy Low
Comedogenicity Unknown

Our Assessment

Verdict

Optional

A specialized hair colorant with established safety profile but limited skincare applications due to its primary function as a direct dye.

Related

Similar Ingredients

Finding similar ingredients…