HC RED NO. 17 is graded A (Safe) by Expert·ING, based on COSING regulatory data.
HC RED NO. 17
Safety grade: A
HC Red No. 17 is a synthetic colorant specifically designed for coloring hair. It's a small molecule dye that penetrates the hair shaft to create red tones.
This ingredient is used in hair dyes to provide red color to hair by bonding with the hair structure.
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