Science
Mechanism of Action
Functions as a reactive coupling agent that combines with primary intermediates in the presence of oxidizing agents to form colored pigment molecules. Does not exhibit documented skincare mechanisms such as anti-aging, hydration, or barrier repair properties.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 CIR 2014: Non-sensitizing at 50% concentration in ethanol:water vehicle
- 02 SCCS 2014: Safe at maximum 1.0% concentration with minimal percutaneous absorption
- 03 CIR 2014: Non-irritating to skin at 100% concentration but causes eye irritation
Transparency
Dusting Analysis
Not applicable for skincare formulations as this ingredient is specifically designed for hair dye applications
The Formula
Formulation
Stability
Demonstrates high stability under standard temperature and pressure conditions. Enhanced solubility in polar solvents due to hydrogen bonding capacity.
Conflicts
- Strong oxidizing agents
- Strong acids
- Acid chlorides
- Acid anhydrides
- Nitrosating agents
Safety
Safety Profile
Approved for hair dye use only with mandatory patch testing requirements. Classified as coal tar hair dye requiring caution labeling in US regulations.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Inappropriate for precision skincare as it lacks dermatological benefits and is specifically formulated for hair dye applications.
Related
Similar Ingredients
Finding similar ingredients…
References
Sources