M-DIMETHYLAMINOPHENYL UREA is graded A (Safe) by Expert·ING, based on COSING regulatory data.
M-DIMETHYLAMINOPHENYL UREA
Safety grade: A
This is a synthetic chemical compound used in hair dyes that helps transfer and deposit color onto hair strands. It works as a color-carrying agent that makes hair dye formulas more effective and longer-lasting.
This ingredient acts as a coupling agent in hair dyeing products that helps bind and develop hair color, allowing the dye to properly penetrate and adhere to the hair shaft for consistent, vibrant color results.
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