PICRAMIC ACID is graded A (Safe) by Expert·ING, based on COSING regulatory data.
PICRAMIC ACID
Safety grade: A
Picramic acid is a chemical compound used as a color-developing ingredient in hair dyes. It works by reacting with other dye components to create permanent color that bonds to the hair shaft.
This ingredient is used in hair dyes as an oxidative dye intermediate that helps develop and stabilize hair color, allowing the dye to penetrate and permanently color the hair.
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