ACID RED 27 ALUMINUM LAKE is graded A (Safe) by Expert·ING, based on COSING regulatory data.
ACID RED 27 ALUMINUM LAKE
Safety grade: A
This is a synthetic red colorant made by combining a red dye with aluminum to create a stable, insoluble pigment. It's used to give hair dyes their vibrant red color.
This ingredient is used in hair dyes to provide long-lasting red color that adheres to the hair shaft and resists fading during washing and exposure to sunlight.
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