CI 45350 (D&C Yellow No. 7 Or 8)
What is CI 45350 (D&C Yellow No. 7 Or 8)?
CI 45350, known as D&C Yellow No. 7 or 8, is a synthetic xanthene dye, chemically the disodium salt of a brominated fluorescein derivative. Produced through organic synthesis, it belongs to certified color additives approved for cosmetic applications by regulatory bodies like the FDA. Primarily functioning as a colorant, it imparts a bright yellow shade with fluorescent properties under certain lighting, absorbing specific wavelengths and re-emitting light for vivid effects. Commonly incorporated into makeup products such as lipsticks, eyeliners, nail enamels, and bath products, it ensures uniform pigmentation across batches, maintains color stability during use, and enhances visual appeal without altering product texture.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Benefits
Provides bright, consistent yellow coloring for appealing product aesthetics.
Offers fluorescent effects that enhance vibrancy under various lighting.
Supports formulation stability for reliable shade matching in cosmetics.
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 vibrant, pigmented makeup looks. | People with known allergies to synthetic dyes. |
| Users with normal skin tolerance for color additives. | Those experiencing sensitivity to fluorescein derivatives. |
| Formulators needing reliable yellow tones in colorful cosmetics. | Individuals prone to contact dermatitis from colorants. |
Safety Notes
- Rated low to moderate concern by EWG based on use restrictions.
- Approved for cosmetic use by FDA with established purity standards.
Frequently Asked Questions about CI 45350 (D&C Yellow No. 7 Or 8)
What is CI 45350 used for in cosmetics?
It serves as a colorant to add bright yellow hues and fluorescence to products like makeup and nail polish.
Is CI 45350 safe for skin?
It is FDA-approved for cosmetics within purity guidelines, with low to moderate hazard ratings from evaluators.
Does it cause irritation?
Generally low irritation potential, though sensitive individuals may react to dyes.