Science
Mechanism of Action
This ingredient functions as a colorant by absorbing and reflecting specific wavelengths of visible light, thereby imparting a blue hue to the product or applied surface. It does not engage in any active biological or physiological processes within the skin's various layers, distinguishing it from active ingredients.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
CI 69825 is a colorant and does not possess active skincare properties. Therefore, the concept of 'dusting' (over-hyping its benefits) does not apply to this ingredient.
The Formula
Formulation
Stability
The chromatic properties of CI 69825 are sensitive to pH variations. It can exhibit a brown appearance in highly concentrated sulfuric acid, transitioning to blue upon dilution. In basic solutions, it presents as green-blue, while acidic environments can shift its color to red-light blue.
Safety
Safety Profile
No specific Cosmetic Ingredient Review (CIR) assessment for CI 69825 was identified. In the European Union, it is recognized as an approved colorant under Annex IV of Regulation (EC) No 1223/2009, indicating it has undergone safety evaluations; however, explicit maximum concentration limits for cosmetic use were not readily available. In the United States, known as D&C Blue No. 9, its use in general cosmetic applications for skin, nails, or hair is not broadly approved by the FDA as a color additive. Its approved use in the US is restricted to specific drug and device applications, such as coloring cotton and silk surgical sutures, with a limit of 2.5% for general and ophthalmic use.
Your Skin
Skin Compatibility
Our Assessment
Verdict
As a colorant with no active skin benefits and significant regulatory restrictions for general cosmetic use in the United States, CI 69825 is generally not recommended for precision skincare formulations.
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