P-AMINOPHENOL HCL is graded A** (Safe) by Expert·ING, based on COSING regulatory data.
P-AMINOPHENOL HCL
Para-Aminophenol HCl
Safety grade: A**
This is a chemical compound used as a hair dye intermediate that helps create color in hair. It works by reacting with other ingredients in hair dye formulations to produce the desired hair color.
This ingredient serves as a primary colorant precursor in hair dyes that oxidizes to create permanent hair color shades.
Graded using: COSING.
Last verified: May 26, 2026
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