What is E172?
E172 is Iron oxides and hydroxides, a colour. Mineral.
Also written as: INS 172, E-172, E 172. 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 E172 halal?
E172 (Iron oxides and hydroxides) is halal. Mineral.
What is E172 made from?
Mineral.
What is E172 used for?
E172 is used as a colour, typically in sweets, soft drinks, desserts, sauces and snacks.
What should I do if a product contains E172?
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