skincarecheck
INCI ingredient

CI 42090

Also listed as: Brilliant Blue FCF, Blue 1, CI 42090 / Blue 1 Lake, CI 42090 (Blue 1), Cl 42090, Blue 1 (Ci 42090)

Brilliant Blue FCF, a synthetic blue dye identified by its colour index number.

What it triggers

  • Vegan originYesno animal source
  • FragranceNonot a perfume ingredient
  • ParabenNonot a preservative of this family
  • SulfateNonot a sulfate surfactant
  • SiliconeNonot a silicone
  • AlcoholNonot a drying alcohol

What it does

CI 42090 is the colour index name for Brilliant Blue FCF, also called Blue 1. Mixed with yellow it gives the green of many mouthwashes, shower gels and toothpaste stripes. CosIng lists it as a colorant and hair dye ingredient.

It is synthetic and affects none of the six checks.

Functions: colorant

Products with CI 42090

in 1,148 products

Showing 24 of 1,148 products with this ingredient, most scanned first.

In the EU ingredient database

Functions listed by CosIng
  • colorant
  • hair dyeing
  • colorant: Exclusively or mainly intended to colour the cosmetic product, the body as a whole or certain parts thereof, by absorption or reflection of visible light; (precursors of oxidative hair colorants shall be deemed colorants). All authorised colorants are substances in the positive list of Annex IV to the Cosmetics Regulation 1223/2009.
  • hair dyeing: Imparting color to hair. Hair dyeing preparations may be temporary, semi-permanent, permanent, depending on the length of time the colorant remains on the hair.

CAS 2650-18-2/ 37307-56-5/ 3844-45-9 · EC -/ -/ 223-339-8

EU regulation

Not on a restricted-substances annex. Listed as an allowed cosmetic ingredient.

Source: CosIng, European Commission. Informative, no legal value; the regulation text is the reference.

Classification from the INCI name; product lists from Open Beauty Facts.Report a mistake