FD&C Blue No. 1, also known as Brillant Blue FCF (“for coloring food”), is a water-soluble artificial blue dye allowed by the FDA.



  • Used in foods, drugs and cosmetics. FD&C Blue No. 1 is widely used in food products (candies, confections, beverages, etc.)
  • As a blue color, Brilliant Blue FCF is often found in ice cream, canned processed peas, packet soups, bottled food colorings, icings, ice pops, blue raspberry flavored products, dairy products, sweets and drinks, especially the liqueur Blue Curaçao.
  • It is also used in soaps, shampoos, mouthwash and other hygiene and cosmetics applications.
  • In soil science, Brilliant Blue is applied in tracing studies to visualize infiltration and water distribution in the soil.
  • In the United States, of the two approved blue dyes (the other being Indigo carmine, or FD&C Blue #2), Brilliant Blue FCF is the more common of the two.




  • The dye is poorly absorbed from the gastro-intestinal tract and 95% of the ingested dye can be found in the feces.
  • When applied to the tongue or shaved skin, Brilliant Blue FCF can be absorbed directly into the bloodstream.
  • Brilliant Blue FCF is an approved food colorant and pharmacologically inactive substance for drug formulations in the EU and the United States.
  • It is also legal in other countries. It has the capacity for inducing allergic reactions in individuals with pre-existing moderate asthma.[ In 2003, the U.S. FDA issued a public health advisory to warn health care providers of the potential toxicity of this synthetic dye in enteral feeding solutions. The following legal limits apply in the EU (E 131) and other countries: 150–300 mg/kg depending on the type of food. Safety limit for foods and drugs: 0.1 mg/day per kg body weight. The ADI for Brilliant Blue FCF is 6 mg/kg.


Unknown, please consult with your doctor.

Other names

Brillant Blue FCF


Source: Wikipedia, https://en.wikipedia.org/wiki/Brilliant_Blue_FCF

Drugs.com, https://www.drugs.com/inactive/fd-c-blue-no-1-244.html

EWG.org, https://www.ewg.org/skindeep/ingredient/702408/FD%26C_BLUE_1/

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