ACID RED 52 is graded C (Moderate) by Expert·ING, based on COSING regulatory data. It is restricted under EU COSING — AnnexIII-SAFETY-.
ACID RED 52
Safety grade: C
This colorant is permitted in EU cosmetics but restricted to certain product types or conditions of use under EU Cosmetics Regulation (EC) No 1223/2009. To be sold legally in the EU or UK, a product must meet these conditions.
This ingredient is used in hair dyes to impart red and pink color tones to hair by bonding to the hair shaft.
Graded using: COSING.
- EU COSING — Restricted
- EU COSING — Permitted
Last verified: June 9, 2026
Safer alternatives to ACID RED 52
- BASIC RED 51 — Grade A. Basic Red 51 provides direct red hair coloring, same chromatic function as Acid Red 52.
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