Science
Mechanism of Action
CI 18050 acts by adhering to surfaces, visually coloring them red through light interaction. In temporary hair applications, it remains on the surface.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
This water-soluble colorant is stable within pH 3-5, demonstrating good resistance to light and acids like citric and tartaric. However, it degrades to brown in alkaline solutions and exhibits poor resistance to heat and bacteria.
Conflicts
- Alkaline solutions
- Copper ions
- Iron ions
Safety
Safety Profile
Delisted by the FDA in 1963, CI 18050 is not permitted in US FDA-regulated cosmetics. In the EU, it is a restricted colorant, prohibited near mucous membranes (lips, eyes), though generally not considered toxic or harmful.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Due to significant regulatory restrictions in the US and specific usage limitations in the EU, careful assessment of regional compliance and product application is crucial.
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References
Sources