FD&C Red 3
What is FD&C Red 3?
FD&C Red 3, known chemically as erythrosine or CI 45430, is a synthetic xanthene dye derived from fluorescein with four iodine atoms attached. This water-soluble, cherry-red powder belongs to the fluorescein family and is produced through iodination of fluorescein. In cosmetics, it serves as a colorant in categories such as makeup, bath products, and hair colorants. It functions by selectively absorbing blue-green light wavelengths, reflecting red hues to create bright, consistent pigmentation. Its high stability to light and heat makes it suitable for various formulations, ensuring even color distribution and product uniformity without fading during use or storage. Regulatory bodies like the FDA certify it for specific cosmetic applications, often with limits on concentration and use sites.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Benefits
Delivers intense, stable red pigmentation for appealing visual effects.
Maintains consistent color across production batches.
Enhances product aesthetics without affecting texture.
Who It's For
A quick guide for who this ingredient may suit (and who should be cautious).
| Who May Benefit | Who Should Avoid |
|---|---|
| Individuals preferring bold red shades in lip and cheek products. | Those with known sensitivities to synthetic dyes. |
| Users with typical skin seeking reliable color payoff. | People applying products near the eye area per regulations. |
| Formulators needing heat- and light-resistant dyes. | Individuals wary of moderate-rated ingredients. |
Safety Notes
- Earned a moderate hazard score from EWG due to limited data and animal study concerns.
- Deemed safe for cosmetic use by Cosmetic Ingredient Review experts.
Frequently Asked Questions about FD&C Red 3
What is FD&C Red 3 used for in cosmetics?
It acts as a colorant to provide bright red shades in lipsticks, blushes, and similar products.
Is FD&C Red 3 comedogenic?
It has a comedogenic rating of 0, indicating low likelihood of pore clogging.
Are there restrictions on FD&C Red 3?
Regulators limit its use in eye-area cosmetics, but approve it elsewhere within guidelines.