What is E133?
E133 is Brilliant blue FCF, a colour. Synthetic.
Also written as: INS 133, E-133, E 133. INS is the international numbering system used outside Europe, including on labels in Asia, Australia and the Middle East.
What to do
No action needed for this additive. Check the rest of the ingredient list, and remember that meat products still need proper halal slaughter.
Frequently asked questions
Is E133 halal?
E133 (Brilliant blue FCF) is halal. Synthetic.
What is E133 made from?
Synthetic dye.
What is E133 used for?
E133 is used as a colour, typically in sweets, soft drinks, desserts, sauces and snacks.
What should I do if a product contains E133?
No action needed for this additive. Check the rest of the ingredient list, and remember that meat products still need proper halal slaughter.
Related E-numbers
Last reviewed 2026-10-06. How we decide · Suggest a correction