Blue 1
CI 42090
Adds color.
In the Added colorants group
What it is
A bright blue dye made in a lab, also known as Brilliant Blue FCF.
Gives the product a blue color.
What it does in a formula
Adds colorOfficial EU function: Colorant
Why some people watch for it
Added colorants
Some people prefer products without added color.
What official sources say
Restricted in certain uses · Cosmetics, EU
Allowed as a colorant in EU cosmetics with conditions (Annex IV).
Regulation (EC) No 1223/2009, Annex IV: list of colorants allowed in cosmetic products, retrieved 2026-10-09Restricted in certain uses · Cosmetics, EU
Allowed in EU cosmetics up to 0.5%, only as a hair dye in non-oxidative hair dye products (Annex III, entry 190).
Regulation (EC) No 1223/2009, Annex III: list of substances which cosmetic products must not contain except subject to the restrictions laid down, retrieved 2026-10-09