Science
Mechanism of Action
As D&C Red No. 30, CI 73360 functions as a synthetic cosmetic colorant. Its mechanism involves the absorption or reflection of specific wavelengths of physical light, thereby imparting a vibrant red or pink coloration to the product matrix.
Research
Clinical Evidence
Insufficient-data confidenceN/A
Transparency
Dusting Analysis
This ingredient functions as a pigment, providing coloration through dispersion rather than active absorption or interaction with skin mechanisms. Therefore, the concept of 'dusting' in the context of reduced efficacy or undesirable cosmetic appearance due to an active ingredient does not directly apply to CI 73360.
The Formula
Formulation
Stability
CI 73360 demonstrates robust stability against light and heat exposure. As an indigoid 'lake' pigment, often formed with metal salts like aluminum, calcium, or barium, it is insoluble in water. Optimal incorporation into formulations necessitates dispersion in a suitable medium using high-speed stirring or a triple roll mill.
Safety
Safety Profile
CI 73360 is permanently listed and FDA-approved for use in general cosmetics and pharmaceuticals, requiring certification, with a maximum concentration not exceeding 10% (0.10) in any formulation. However, it is explicitly not approved by the FDA for use in the eye area. In Europe, its use and maximum concentrations are regulated under EC Cosmetics Regulation 1223/2009, Annex IV. Concerns exist regarding potential trace contamination with heavy metals such as lead and arsenic, which have been associated with health issues. A patch test is recommended before comprehensive application of products containing this pigment.
Your Skin
Skin Compatibility
Our Assessment
Verdict
CI 73360 is a valuable synthetic pigment providing stable red/pink coloration across a broad spectrum of cosmetic products and is generally compatible with all skin types, though regulatory restrictions for eye-area use and potential heavy metal contaminants warrant careful formulation and consumer caution.
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