Science
Mechanism of Action
This ingredient functions solely as a physical colorant. It achieves its black hue by interacting with light, absorbing specific wavelengths across the visible spectrum and reflecting minimal light, which creates the perception of blackness on the application surface. It does not exhibit any biological activity or physiological mechanism within the skin.
Research
Clinical Evidence
Insufficient-data confidenceN/A
Transparency
Dusting Analysis
As a finely particulate pigment, CI 77267, specifically in its carbon black form, presents a potential for airborne dust. Due to identified concerns regarding the toxicity associated with inhaling carbon black dust, its use should be meticulously managed to prevent end-user lung exposure during product application.
The Formula
Formulation
Stability
CI 77267 demonstrates exceptional stability, proving largely impervious to degradation from light, acids, or alkalis, which ensures consistent color performance over time. Inherently, it is practically insoluble in water and most common cosmetic solvents, typically existing as a suspension. For uniform dispersion in cosmetic formulations, the incorporation of specialized dispersants and stabilizers is crucial to prevent agglomeration and precipitation. Specific 'water-soluble carbon black' products are commercially available, formulated with additives to facilitate dispersion in aqueous or alcoholic systems.
Conflicts
- Applications or product forms that could lead to significant end-user inhalation exposure (e.g., loose powders).
Safety
Safety Profile
CI 77267 has undergone regulatory scrutiny, with the FDA approving its use in cosmetics, including applications around the eyes, subject to specific restrictions. In the European Union, it is included in Annex IV of the Cosmetics Regulation (EC) No. 1223/2009 as a permitted colorant, signifying that it has successfully passed toxicological safety assessments for its designated cosmetic applications. The CIR Expert Panel explicitly excludes carbon black colorants from their review scope, deferring to FDA's guidance on colorant regulation for this ingredient.
Your Skin
Skin Compatibility
Our Assessment
Verdict
CI 77267 is a highly stable and globally regulated black cosmetic pigment, valued for its ability to deliver intense coloration across diverse product categories with a low probability of skin irritation or comedogenicity.
Related
Similar Ingredients
Finding similar ingredients…