Science
Mechanism of Action
As a cosmetic colorant, CI 10020 interacts with physical light, absorbing or reflecting specific wavelengths to impart a green hue to cosmetic products, skin, nails, or hair. This process is purely aesthetic and does not involve biological activity within the skin.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
As an acid dye, CI 10020 exhibits optimal color development and higher solubility within acidic conditions, specifically between pH 4 and 6. In alkaline environments, its color intensity may be reduced due to potential hydrolysis or precipitation. The dye generally demonstrates good lightfastness, although its stability can vary based on specific application and environmental factors. It is not recommended for high-temperature cooking processes.
Conflicts
- Alkaline environments (may cause hydrolysis or precipitation)
- Iron ions (may cause slight darkening of color)
Safety
Safety Profile
CI 10020 is regulated as a colorant under the EC Cosmetics Regulation (Regulation (EC) No. 1223/2009) in Europe, where it is listed in Annex IV for permitted cosmetic colorants. While Annex IV may specify maximum concentrations for some colorants, a specific maximum for CI 10020 was not provided in the research. It is generally not used in products applied on or in the immediate vicinity of mucous membranes (e.g., lip and eye areas). The Scientific Committee on Consumer Products (SCCP) found no skin sensitizing effect under maximization test conditions. Dermal irritation tests at a 50% concentration caused black staining, making erythema evaluation difficult, but no edema formation was noted. Specific FDA approval status for CI 10020 as a cosmetic colorant in the US was not identified in the provided data.
Your Skin
Skin Compatibility
Our Assessment
Verdict
CI 10020 is a safe and effective cosmetic colorant for imparting a green hue to formulations, particularly suitable for products within an acidic pH range, though it offers no active skincare benefits.
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