2,6-DIAMINOPYRIDINE SULFATE is graded A (Safe) by Expert·ING, based on COSING regulatory data.
2,6-DIAMINOPYRIDINE SULFATE
Safety grade: A
This is a synthetic chemical compound used in hair coloring products. It acts as a dye intermediate, meaning it reacts with other chemicals during the coloring process to help create the final hair color.
It is used in permanent and semi-permanent hair dyes as a color-developing agent that combines with other dye components to produce lasting 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