Science
Mechanism of Action
As a physical colorant, CI 21108 functions by absorbing and reflecting specific wavelengths of light. It remains suspended within the product matrix to impart color to the formulation itself rather than providing biological skin benefits.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
As a colorant, this ingredient is used at very low concentrations to achieve aesthetic goals; it is not a performance active subject to 'marketing dusting' for clinical claims.
The Formula
Formulation
Stability
Exhibits exceptional resilience to heat (up to 200°C), UV exposure, solvents, and varying pH levels.
Conflicts
- Not for use in leave-on products
Safety
Safety Profile
Restricted by EC Regulation No. 1223/2009 for use only in rinse-off products. While generally considered non-toxic regarding reproductive and carcinogenic concerns, it is noted for high environmental persistence.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A highly stable yellow pigment strictly utilized for the aesthetic coloring of rinse-off cosmetic formulations.
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References
Sources