ACID GREEN 50 is graded A (Safe) by Expert·ING, based on COSING regulatory data.
ACID GREEN 50
Safety grade: A
Acid Green 50 is a synthetic green colorant used to add vibrant green color to hair dyes. It is a certified colorant that belongs to a group of dyes designed specifically for coloring hair.
This ingredient is used in hair dyes to impart and maintain green color on hair strands.
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