Ingredient

Brilliant Blue

Source
Not animal-derived
Allergen
No
Role in food
This synthetic dye is added to foods to impart or restore colour, providing a …

What is Brilliant Blue?

Brilliant Blue FCF (also known as E133) is a synthetic blue food colouring. It is produced from petroleum-based chemicals through a multi-step synthesis process. It is highly soluble in water and provides a vibrant blue hue.

Is Brilliant Blue vegan?

Brilliant Blue is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.

Is Brilliant Blue gluten-free?

It does not contain gluten.

Is Brilliant Blue a major allergen?

Brilliant Blue FCF is not derived from any of the 14 major allergens that UK law requires to be emphasised on food labels.

What is Brilliant Blue used for?

This synthetic dye is added to foods to impart or restore colour, providing a bright blue shade.

Is Brilliant Blue safe?

Brilliant Blue FCF is an authorised food additive in Great Britain, listed on the Register of Food Additive Authorisations.

Why it's used

This synthetic dye is added to foods to impart or restore colour, providing a bright blue shade. It is commonly found in confectionery, such as candies and ice cream, as well as in some baked goods and beverages where a blue colour is desired.

Health notes

Brilliant Blue FCF is an authorised food additive in Great Britain, listed on the Register of Food Additive Authorisations. European food safety authorities, including EFSA, have evaluated its safety. Some studies have explored potential links between artificial food colourings and hyperactivity in children, but the evidence is mixed and regulatory bodies have not established a causal link at typical consumption levels.

Allergen info

Brilliant Blue FCF is not derived from any of the 14 major allergens that UK law requires to be emphasised on food labels. It does not contain gluten.

Foods that contain Brilliant Blue

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Auto-generated content. This description was generated automatically and is pending editorial review. Inaccuracies are possible. Found a mistake? Contact us.

Last updated: 17 October 2026

Note: This site presents label data from Open Food Facts for general information. It is not medical advice. Check the package label; formulations change.