HC BLUE NO. 12 is graded C (Moderate) by Expert·ING, based on COSING regulatory data. It is restricted under EU COSING — AnnexIII-SAFETY-.
HC BLUE NO. 12
Safety grade: C
HC Blue No. 12 is a synthetic hair dye compound that belongs to a group of color additives used specifically for dyeing hair. It works by penetrating the hair shaft to deposit blue color that can be either temporary or semi-permanent depending on the formulation.
This ingredient is used in hair dyes to impart blue color to hair through a direct oxidative dyeing process or as a semi-permanent colorant.
Graded using: COSING.
- EU COSING — Restricted
Last verified: May 26, 2026
Safer alternatives to HC BLUE NO. 12
- ULTRAMARINES — Grade A. Ultramarine Blue provides blue hair color like HC Blue No. 12.
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