Science
Mechanism of Action
Acts as an oxidative hair dye precursor that requires hydrogen peroxide activation to form large, colored pigment molecules through coupling reactions with primary intermediates in alkaline conditions
Research
Clinical Evidence
High confidence0.5%
Key findings
- 01 Demonstrated safe use in oxidative hair dye formulations with no health risks beyond sensitization potential
- 02 Showed slight to moderate skin irritation in 2-week guinea pig studies, though no ocular irritation occurred
Transparency
Dusting Analysis
Not commonly used in skincare; primarily restricted to hair dye applications with strict concentration limits due to sensitization concerns
The Formula
Formulation
Stability
Highly unstable when exposed to atmospheric oxygen, forming unwanted colored polymers. Requires antioxidants like sodium sulfite and nitrogen atmosphere storage. More stable in acidic conditions below pH 5, though typically used in alkaline hair systems.
Synergies
- hydrogen peroxide
- primary intermediates
- sodium sulfite
Conflicts
- atmospheric oxygen
- strong oxidizing agents
- light exposure
Safety
Safety Profile
Approved specifically for oxidative hair dye use only, with notable sensitization potential requiring careful handling
Your Skin
Skin Compatibility
Our Assessment
Verdict
Specialized hair dye ingredient with high sensitization risk and no established skincare benefits, making it unsuitable for precision skincare applications.
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References
Sources