What is E129?

Allura Red AC is an organic compound classified as an azo compound and a disulfonate. Also known as FD&C Red 40 or E129, it is a red dye commonly used in food. E129 sits in the E100–E199 series, which in the EU classification mainly covers colours.

What is E129 used for?

E129 belongs to the colours group. Colours are added to give or restore colour to food. Some are natural, like curcumin from turmeric; some synthetic dyes are debated and require warning labels in the EU.

Is E129 safe?

E129 is rated “moderate”. It is approved for use in food, but some people prefer to limit it. “Moderate” means it is approved, but is debated or something some people prefer to limit.

How E129 appears on labels

On food packaging you'll find E129 either as the number “E129” or by the name “Allura Red AC” in the ingredient list, often after its function. Ingredients are listed in descending order by weight, so an additive near the end is present only in small amounts.

Is E129 vegan?

Yes, E129 is suitable for vegans.