Science
Mechanism of Action
Functions as a direct colorant that diffuses into hair structures due to its small molecular size, depositing pigment without requiring chemical reactions with internal hair components, though it can participate in oxidative coloring systems
Research
Clinical Evidence
Medium confidence0.5%
Key findings
- 01 SCCS evaluation confirmed safety for non-oxidative hair dye applications
- 02 Approved concentration for oxidative hair coloring systems with hydrogen peroxide
Transparency
Dusting Analysis
Specialized hair dye ingredient with established regulatory limits, not typically subject to dusting practices
The Formula
Formulation
Stability
Maintains stability for 7 years in dry storage with light protection; cream formulations remain stable for 6 months; compatible with oxidative environments for standard 45-minute application periods
Synergies
- Hydrogen peroxide in oxidative systems
Conflicts
- Nitrosating agents
- Nitrites
- Strong oxidizing agents for extended periods
Safety
Safety Profile
SCCS approval limited to hair applications; secondary amine structure creates nitrosation potential requiring careful formulation practices
Your Skin
Skin Compatibility
Our Assessment
Verdict
Specialized hair colorant with regulatory approval for specific applications but lacks comprehensive safety data for broader cosmetic use.
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References
Sources