CodeE300 · INS 300
TypeAntioxidant
Made fromFermentation / synthetic.
Found inoils, crisps, cereals and fatty foods
What is E300?
E300 is Ascorbic acid (vitamin C), an antioxidant. No animal source.
Also written as: INS 300, E-300, E 300. 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 E300 halal?
E300 (Ascorbic acid (vitamin C)) is halal. No animal source.
What is E300 made from?
Fermentation / synthetic.
What is E300 used for?
E300 is used as an antioxidant, typically in oils, crisps, cereals and fatty foods.
What should I do if a product contains E300?
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
E301Sodium ascorbateE302Calcium ascorbateE304Ascorbyl palmitateE306Tocopherol-rich extract (vitamin E)E307Alpha-tocopherolE308Gamma-tocopherolE297Fumaric acid
Last reviewed 2026-10-06. How we decide · Suggest a correction