CI 11680
What is CI 11680?
CI 11680 is a synthetic organic pigment identified by its Colour Index number, belonging to the azo dye family due to its characteristic nitrogen-to-nitrogen double bond structure. This chemical composition enables it to produce a bright yellow shade. In cosmetic formulations, it serves primarily in the makeup category, including lip products, eye shadows, nail enamels, and bath products. It functions by absorbing specific wavelengths of light, particularly in the complementary color range, and reflecting yellow light to achieve the intended pigmentation. Being insoluble in water, it disperses well in oily or emulsified bases, ensuring even distribution and stability over time. Production involves diazotization and coupling reactions to form the pigment, followed by purification steps critical for safe cosmetic application, maintaining color fastness against light and heat.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Benefits
Delivers stable, vibrant yellow coloring for eye-catching product aesthetics.
Promotes batch-to-batch color consistency in manufacturing.
Integrates seamlessly into formulations without altering texture or feel.
Who It's For
A quick guide for who this ingredient may suit (and who should be cautious).
| Who May Benefit | Who Should Avoid |
|---|---|
| People using yellow-toned makeup like eyeshadows or liners. | Those sensitive to synthetic azo dyes. |
| Individuals prioritizing uniform product appearance. | Users wary of ingredients with high hazard ratings. |
| Formulators creating colored cosmetics for visual enhancement. | People opting for mineral or natural color alternatives. |
Safety Notes
- Carries a high hazard score from EWG, signaling potential concerns like use limits.
- Regulated in cosmetics with purity requirements to minimize risks.
Frequently Asked Questions about CI 11680
What is CI 11680 used for in skincare?
It acts as a colorant to provide yellow pigmentation in makeup and bath products.
Does CI 11680 clog pores?
It has a comedogenic rating of 0, indicating low likelihood.
Is CI 11680 suitable for sensitive skin?
Caution advised due to its high hazard rating; patch test recommended.