Science
Mechanism of Action
As a colorant, CI 27755 imparts a brown-to-black hue. However, its primary mechanism of concern relates to its metabolism: when absorbed through skin or mucous membranes, this azo dye can be broken down into aromatic amines, some of which are known carcinogens.
Research
Clinical Evidence
Insufficient-data confidenceN/A
Transparency
Dusting Analysis
CI 27755 is not an active ingredient subject to 'dusting' analysis for efficacy. Its use is prohibited due to safety concerns.
The Formula
Formulation
Stability
CI 27755, being an azo dye, is susceptible to photocatalytic degradation. This process can lead to the formation of impurities, specifically aromatic amines, some of which exhibit carcinogenic activity.
Safety
Safety Profile
CI 27755 (Food Black 2) poses a significant health risk, particularly with continuous exposure and absorption. Its specifications for food use were withdrawn by JECFA in 1984 due to inadequate toxicological data, and no acceptable daily intake (ADI) was established. Consequently, its use in food has been prohibited in the European Union and the United States since 1984. For cosmetics, it is listed as a 'Restricted cosmetic ingredient' (IV/52 II/1354) under EU Regulation 1223/2009, and its cosmetic use in both the USA and EU has been discontinued since 1984. The FDA's database explicitly indicates 'No current uses' for cosmetic applications in the US, underscoring its unsuitability.
Your Skin
Skin Compatibility
Our Assessment
Verdict
CI 27755 should be unequivocally avoided in skincare formulations due to its potential to metabolize into carcinogenic aromatic amines and its widespread prohibition by regulatory bodies in both food and cosmetic applications.
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References
Sources