Fd&C Yellow No. 6 ●
TL;DR. It functions as a synthetic colorant, adding a warm it-orange hue to personal care products such as gels, cleansers, bath products, and some oral-care formulas.
What does Fd&C Yellow No. 6 do in a cosmetic formula?
It functions as a synthetic colorant, adding a warm it-orange hue to personal care products such as gels, cleansers, bath products, and some oral-care formulas.
Is Fd&C Yellow No. 6 clean?
It gets more clean-standard scrutiny than most functional ingredients because many frameworks restrict or exclude synthetic petroleum-derived color additives, and certified batches are needed to control trace contaminants. Skin sensitization is uncommon at cosmetic use levels, but regulatory permissions vary by product category and region.
Is Fd&C Yellow No. 6 sustainable?
It is made from petrochemical aromatic feedstocks through synthetic dye chemistry, rather than renewable agricultural sources. It is water soluble and not expected to bioaccumulate strongly, but this dye class can have variable biodegradation and manufacturing wastewater requires careful control.
Is Fd&C Yellow No. 6 COSMOS-approved?
This ingredient is not permitted under COSMOS-natural or COSMOS-organic colorant criteria. From a Green Chemistry view, petroleum feedstocks, multi-step synthesis, and less certain biodegradation keep it outside strong alignment.
How does Fd&C Yellow No. 6 work chemically?
The molecule is a water-soluble synthetic monoazo colorant, typically supplied as a sodium salt with sulfonate groups that improve dispersion in water-based formulas. It is used at very low visual-coloring levels, is generally stable in the mildly acidic to neutral pH range common in personal care, and can fade when exposed to strong oxidizing or reducing systems.
Last updated 2026-05-14