Science
Mechanism of Action
PIGMENT RED 83 functions as a colorant by selectively absorbing and reflecting specific wavelengths of physical light, thereby imparting a vibrant red coloration to cosmetic products, as well as to skin, nails, and hair when applied.
Research
Clinical Evidence
Insufficient-data confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
PIGMENT RED 83 exhibits very low water solubility, measured at 0.483 mg/L at 20 °C and pH 4.5. It is soluble in acetone, boiling ethanol, and alkali solutions, but insoluble in cold ethanol and oleic acid. As a pigment, it is typically dispersed in cosmetic formulations rather than fully dissolved. It demonstrates pH sensitivity, with color changes observed in concentrated sulfuric acid (yellow red, yellow, then red after dilution) and in NaOH solution (purple).
Conflicts
- strong acids (color change/precipitation)
- strong alkalis (color change)
Safety
Safety Profile
PIGMENT RED 83 (CI 58000) is listed in Annex IV of the EC Cosmetics Regulation for use as a colorant. However, there is a proposed mandatory classification for skin sensitisation (Skin Sens. 1B; H317), indicating a significant potential for allergic reactions. It is also identified as a suspected endocrine disruptor and an eye irritant. No specific FDA status for this compound was found in the provided research, though other Pigment Reds have varying statuses.
Your Skin
Skin Compatibility
Our Assessment
Verdict
PIGMENT RED 83 is not recommended for precision skincare formulations due to a proposed classification as a skin sensitizer, its identification as a suspected endocrine disruptor and eye irritant, and the absence of any demonstrable skin benefits.
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References
Sources