HC RED NO. 10 is graded C (Moderate) by Expert·ING, based on COSING regulatory data. It is restricted under EU COSING — AnnexIII-SAFETY-.
HC RED NO. 10
Safety grade: C
HC Red No. 10 is a synthetic dye molecule used to color hair. It's a small chemical compound that penetrates the hair shaft to deposit red pigment.
This ingredient is used in hair dyes to provide red coloration by penetrating into the hair structure and bonding with the hair proteins.
Graded using: COSING.
- EU COSING — Restricted
Last verified: May 26, 2026
Safer alternatives to HC RED NO. 10
- BASIC RED 51 — Grade A. Basic Red 51 provides direct red hair color, matching HC Red No. 10's red shade.
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