Science
Mechanism of Action
Functions through oxidative coupling reactions where it combines with primary intermediates and oxidizing agents to form larger, stable chromophore molecules that provide lasting color effects in hair shaft structures.
Research
Clinical Evidence
Medium confidence2%
Key findings
- 01 Safety evaluation confirmed effectiveness as hair dye coupler but identified potential sensitization concerns
- 02 Demonstrated excellent chemical stability with over 99% recovery in aqueous systems over one week
Transparency
Dusting Analysis
Not applicable for skincare formulations as this ingredient is specifically regulated for hair coloring applications only
The Formula
Formulation
Stability
Exhibits exceptional stability exceeding 99% in water-based solutions at neutral pH. Maintains integrity in alkaline conditions typical of hair treatment formulations.
Conflicts
- Strong oxidizing agents
- Strong acids
Safety
Safety Profile
Regulated under EU Annex III/308 and ASEAN guidelines specifically for hair coloring. European safety authorities acknowledge sensitization potential cannot be ruled out.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Not recommended for skincare applications due to regulatory restrictions, sensitization concerns, and lack of established dermatological benefits.
Related
Similar Ingredients
Finding similar ingredients…
References
Sources