BASIC BLUE 41 is graded F (Banned) by Expert·ING, based on EU COSING Annex II regulatory data. It is restricted under EU COSING — AnnexII.
BASIC BLUE 41
Benzothiazolium, 2-[[4-[ethyl(2-hydroxyethyl)amino]phenyl]azo]-6-methoxy-3-methyl- and its salts, when used as a substance in hair dye products
Safety grade: F
This chemical substance is prohibited in EU cosmetic products under COSING Annex II. It has been banned due to safety concerns identified by EU regulatory authorities.
Graded using: EU COSING Annex II.
- EU COSING — Prohibited
Last verified: June 7, 2026
Other Prohibited Chemical ingredients
- BUTYLPHENYL METHYLPROPIONAL — Grade F**
- ZINC PYRITHIONE — Grade F**
- HYDROXYISOHEXYL 3-CYCLOHEXENE CARBOXALDEHYDE — Grade F
- CI 73360 — Grade F
- PENTASODIUM PENTETATE — Grade F**
- 4-METHYLBENZYLIDENE CAMPHOR — Grade F