Science
Mechanism of Action
This synthetic monoazo dye functions by absorbing and reflecting specific wavelengths of light, thus imparting its characteristic orange-brown-reddish hue to cosmetic formulations. It acts solely as a colorant.
Research
Clinical Evidence
High confidenceOptimal usage in lotions and creams is between 0.5-1.2% to minimize dilution and prevent phase separation.
Key findings
- 01 Studies define optimal concentrations for various cosmetic forms, such as 1.5-2.5% for matte lipsticks and 0.8-1.5% for lip gloss, to achieve desired color intensity and texture without compromising formula stability.
Transparency
Dusting Analysis
In pressed powder formulations, concentrations exceeding 6% can lead to a dusty texture and make compacting difficult.
The Formula
Formulation
Stability
CI 15850 is stable up to 75°C and resists bleeding in humid conditions, maintaining 95% recovery in formulations for 7 months at 25ºC. Lake forms generally require dispersion.
Safety
Safety Profile
The SCCS concluded it's generally not sensitizing, though rare contact allergies and dermatitis from aluminum-based lake forms are reported. Purity is critical to minimize irritation risk. The EWG notes concerns regarding enhanced skin absorption and high use restrictions.
Your Skin
Skin Compatibility
Our Assessment
Verdict
CI 15850 is a valuable cosmetic colorant, providing a red-orange hue with a generally low risk of irritation or comedogenicity, primarily used for aesthetic enhancement rather than direct skin benefits.
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References
Sources