Science
Mechanism of Action
As a synthetic blue triphenylmethane dye, CI 42080 functions by absorbing and reflecting specific wavelengths of visible light, thereby imparting its characteristic blue hue to cosmetic preparations, and temporarily to the skin, nails, or hair upon application.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
While specific optimal pH information is not explicitly detailed, CI 42080 is water-soluble, aligning with general dye characteristics for use in various aqueous solutions.
Safety
Safety Profile
CI 42080 is listed in Annex IV of the EC Cosmetics Regulation 1223/2009, signifying its toxicological evaluation and approval for use with specific restrictions. Within the EU, its use is limited to rinse-off cosmetics, with precise maximum concentrations defined in this Annex. In the United States, its synonym D&C Blue No. 3, like all color additives, requires FDA approval for cosmetic applications.
Your Skin
Skin Compatibility
Our Assessment
Verdict
CI 42080 serves as a synthetic blue colorant, approved for restricted use in cosmetics globally, primarily in rinse-off formulations within the EU.
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