Science
Mechanism of Action
This ingredient functions by absorbing and reflecting specific wavelengths of visible light, thereby imparting a blue-red or magenta color to the cosmetic product. It acts solely as an aesthetic colorant and does not exert any direct biological or active effects on the skin.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
As a pigment and not an active ingredient, CI 73915 is not subject to 'dusting' as defined by concentration-dependent biological efficacy.
The Formula
Formulation
Stability
CI 73915 exhibits excellent migration resistance and robust thermal stability. It maintains optimal stability within an aqueous pH range of 6.0 to 10.0. For preservation of integrity, storage in a dark place under an inert atmosphere at room temperature is recommended, avoiding strong oxidizing agents and extremely high temperatures.
Conflicts
- strong oxidizing agents
Safety
Safety Profile
CI 73915 is regulated in the EU under EC Cosmetics Regulation No. 1223/2009, specifically authorized for use only in rinse-off cosmetic products following toxicological safety assessment. The FDA generally approves its use as a cosmetic colorant, though typically excluding eye area products, injected products, or surgical sutures unless specifically regulated. While no specific maximum concentration for leave-on topical applications was found, EWG Skin Deep identifies 'LOW_MODERATE' overall concerns, with low ratings for cancer, allergies, and reproductive toxicity. IARC indicates limited evidence of carcinogenicity. SkinSAFE labels the ingredient as 'Irritant Free', and under normal use, no adverse human side effects are commonly reported, although rare allergic reactions are possible.
Your Skin
Skin Compatibility
Our Assessment
Verdict
CI 73915 is a stable and generally well-tolerated cosmetic colorant, providing a blue-red or magenta hue for aesthetic product enhancement, without active skin benefits.
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