Science
Mechanism of Action
Functions as a direct dye through physical infiltration into hair structures without chemical reaction with skin cells. Does not provide established dermatological benefits or biological mechanisms for skin improvement.
Research
Clinical Evidence
Medium confidence0.35%
Key findings
- 01 European SCCNFP evaluation confirmed safety at 0.35% maximum concentration in semi-permanent hair formulations
- 02 Percutaneous absorption study demonstrated 2.73% absorption rate through human epidermis over 24 hours at 0.69% concentration
Transparency
Dusting Analysis
Not used for cosmetic dusting as it serves specialized hair coloring function with strict regulatory concentration limits
The Formula
Formulation
Stability
Photosensitive and air-sensitive compound prone to darkening upon prolonged exposure. Maintains stability in alkaline hair dye bases but degrades at elevated temperatures above 45°C.
Conflicts
- Strong oxidizing agents
- Strong acids
- Acid anhydrides
- Chloroformates
Safety
Safety Profile
EU Cosmetic Regulation Annex III restricted ingredient for non-oxidative hair products only. Pure compound exhibits toxicity through multiple exposure routes.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Specialized hair dye ingredient with no skincare benefits and moderate irritation potential, unsuitable for precision skincare formulations.
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