2,4-DIAMINOPHENOXYETHANOL HCL is graded C (Moderate) by Expert·ING, based on COSING regulatory data. It is restricted under EU COSING — AnnexIII-SAFETY-.
2,4-DIAMINOPHENOXYETHANOL HCL
Safety grade: C
This is a chemical compound used in hair coloring products that helps create color when applied to hair. It works by reacting with other dye components to produce long-lasting color results.
It is used in hair dyes as a color-forming agent that reacts with oxidizing agents to develop and deposit color pigments into the hair shaft.
Graded using: COSING.
- EU COSING — Restricted
Last verified: May 26, 2026
Safer alternatives to 2,4-DIAMINOPHENOXYETHANOL HCL
- 2-METHOXYMETHYL-P-PHENYLENEDIAMINE — Grade A. Oxidative hair dye precursor that develops color through similar coupling reactions.
- LAWSONIA INERMIS EXTRACT — Grade A. Plant-based ingredient capable of depositing color directly into hair shaft.
Other Hair Dyeing ingredients
- RESORCINOL — Grade E**
- THYMOL — Grade A
- M-AMINOPHENOL — Grade C**
- P-AMINOPHENOL — Grade C**
- 2-METHYLRESORCINOL — Grade C
- 4-AMINO-2-HYDROXYTOLUENE — Grade C
- P-PHENYLENEDIAMINE — Grade D**
- 2-METHYL-5-HYDROXYETHYLAMINOPHENOL — Grade C