Ingredient · E128

Red 2G

Source
Not animal-derived
Allergen
No
Role in food
Red 2G is used as a colourant in a variety of food products, including …

What is Red 2G?

Red 2G is a synthetic red azo dye. It is manufactured through a chemical process involving diazotisation and coupling reactions. It is used to impart a red colour to food products.

Is Red 2G vegan?

Red 2G is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.

Is Red 2G gluten-free?

It does not contain gluten.

Is Red 2G a major allergen?

Red 2G is not derived from any of the 14 major allergens that UK law requires to be emphasised on food labels.

What is Red 2G used for?

Red 2G is used as a colourant in a variety of food products, including confectionery, beverages, and baked goods.

Is Red 2G safe?

Red 2G is authorised as a food additive in the UK and is listed on the Register of Food Additive Authorisations.

Why it's used

Red 2G is used as a colourant in a variety of food products, including confectionery, beverages, and baked goods. Its primary function is to provide an appealing red hue, enhancing the visual presentation of these items.

Health notes

Red 2G is authorised as a food additive in the UK and is listed on the Register of Food Additive Authorisations. The European Food Safety Authority (EFSA) has evaluated its safety. Some studies have raised concerns about potential adverse effects, particularly regarding hyperactivity in children, although the evidence is mixed and regulatory bodies continue to review its use.

Allergen info

Red 2G 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 Red 2G

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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.