Science
Mechanism of Action
This ingredient functions exclusively as a cosmetic colorant, providing visual alteration to the skin's surface by depositing a yellow hue. It does not engage in biological pathways or offer any active therapeutic benefits to the dermal layers.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
PIGMENT YELLOW 73 demonstrates robust stability, resisting heat up to at least 180°C and possessing a light fastness rating of 6. It also shows good resistance to both acids and alkalis, rated at 5. While generally compatible with various materials, it is practically insoluble in water (less than 1.0% solubility) and is therefore typically dispersed in formulations rather than dissolved. It may exhibit blooming and is not recommended for baking systems.
Safety
Safety Profile
PIGMENT YELLOW 73 (CI 11710, Pigment Yellow 3) is a restricted cosmetic colorant under EU Cosmetics Regulation 1223/2009 Annex IV. Its use is regulated with specific maximum concentrations and permitted application areas, though these percentages are not explicitly detailed. It is prohibited in products intended for mucous membranes, including the lip and eye areas. A notable concern for this azo dye is its potential for photocatalytic degradation, which may lead to the formation of aromatic amines; some of these are known to possess carcinogenic activity. Manufacturers are obligated to conduct extensive safety studies for such colorants. Despite these concerns, it is generally reported as 'Not Classified' for GHS hazard criteria by most companies.
Your Skin
Skin Compatibility
Our Assessment
Verdict
PIGMENT YELLOW 73 provides aesthetic yellow coloration but, as a restricted ingredient with potential photocatalytic degradation into carcinogenic amines, its inclusion in formulations warrants careful evaluation despite its general GHS 'Not Classified' status.
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