CI 15850
Reviewed by Emma · Last updated 14 Aug 2026
A synthetic red colourant used to add colour to skincare formulations
Best For Skin Types
All
Usage Frequency
As directed by product instructions
What Is CI 15850?
CI 15850 is a synthetic organic colorant approved for use in cosmetics under cosmetic regulations. It belongs to the azo dye class and is used solely to impart red pigmentation to skincare products. It has no active skincare properties and serves a cosmetic purpose only.
This ingredient is found in approximately 6.3% of skincare products on the market, typically at very low concentrations to achieve the desired colour effect.
How It Works
CI 15850 is a colorant that disperses throughout a skincare formula to create red or pink hues. It does not penetrate the skin or interact with skin cells; rather, it remains on the surface as part of the product formulation. Its primary function is aesthetic rather than therapeutic.
Clinical Evidence & References
Research on CI 15850 in skincare and dermal applications is limited. Available studies have examined its presence in cosmetic products (such as temporary tattoos) and assessed potential for contact allergic reactions. The evidence suggests contact allergy risk is scarce, though comprehensive data on prolonged skincare use is not extensive.
As a colorant, CI 15850 has been approved for use in cosmetics within regulated markets, indicating it has undergone safety assessments at approved concentrations. However, individual sensitivities may vary.
How to Use
No special application technique is required. CI 15850 functions purely as a visual component of the product, so use your skincare product as directed by the manufacturer. The colour itself does not influence efficacy.
Safety & Precautions
Frequently Asked Questions
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