FD&C Green No. 3 (Ci 42053)

What is FD&C Green No. 3 (Ci 42053)?

FD&C Green No. 3, also known as CI 42053 or Fast Green FCF, is a synthetic triarylmethane colorant derived from coal tar. This water-soluble trisodium salt dye appears as a bright turquoise powder and is certified by regulators for use in cosmetics. It belongs to the category of certified color additives, commonly incorporated into bath products, shampoos, eye makeup, and nail polishes. In formulations, it functions by selectively absorbing certain wavelengths of light, imparting a stable, intense green hue that remains consistent across production batches and during product use. Its high solubility in water aids in even dispersion, ensuring uniform coloring without separation. Approved for external use, it enhances the aesthetic appeal of tinted cosmetics.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 3-5 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Colorant
Provides or corrects color using dyes or pigments, helping achieve a consistent shade and visual appearance across batches and throughout wear.

Benefits

Delivers consistent green coloration for visual uniformity in products.

Improves product aesthetics in shampoos, soaps, and makeup.

Offers stability in water-based formulations for reliable performance.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
Users seeking vibrant green shades in bath and hair products.
People with known sensitivities to synthetic dyes.
Individuals with non-comedogenic needs, as it scores low on pore-clogging potential.
Those experiencing allergic reactions to color additives.
Formulators aiming for batch-to-batch color consistency.
Individuals preferring to minimize moderate-rated ingredients per safety databases.

Safety Notes

  • Regulatorily approved as a color additive for cosmetic use.
  • May pose moderate concerns from potential impurities, per hazard assessments.

Frequently Asked Questions about FD&C Green No. 3 (Ci 42053)

What is FD&C Green No. 3 used for in skincare?

It serves as a colorant to add green hues to products like shampoos and soaps.

Is FD&C Green No. 3 safe for cosmetic use?

Yes, it is an approved certified color additive by regulatory authorities.

Does it clog pores?

It has a comedogenic rating of 0, indicating low potential to clog pores.