INS 303
Antioxidant/Vitamin - Synthetic potassium salt of ascorbic acid (E300)Potassium Ascorbate
Halal
Is INS 303 (Potassium Ascorbate) halal?
Generally accepted as halal. Typically derived from plant or synthetic sources with no prohibited ingredients.
What to do
Safe to buy. This additive is permissible under Islamic dietary law.
Where is INS 303 used?
INS (International Numbering System) codes are maintained by the Codex Alimentarius Commission and used on food labels in many countries outside the EU. You will commonly see INS 303 on packaging from:
In the EU and UK, the same additive appears as E303. The ingredient, halal status, and sourcing considerations are identical — only the labelling system differs.
EU / UK equivalent: E303
INS 303 and E303 refer to the same food additive — Potassium Ascorbate. If you are checking a product purchased in the UK or Europe, look for E303 on the label instead.
See full E303 halal guide →About INS 303
Mushbooh
Sources / Derived From
- synthetic
Foods that commonly contain INS 303
Frequently Asked Questions
Is INS 303 (Potassium Ascorbate) halal?
INS 303 (Potassium Ascorbate) is classified as Halal. Generally accepted as halal. Typically derived from plant or synthetic sources with no prohibited ingredients.
What is INS 303 used for?
INS 303 is used as a antioxidant - potassium salt of vitamin c in food products.
What is the difference between INS 303 and E303?
INS 303 and E303 are the same additive — Potassium Ascorbate. INS numbers are used on food labels in Australia, New Zealand, Malaysia, Singapore, Indonesia, India, and GCC countries. The E-number system (E303) is used in EU and UK markets. The halal status is identical regardless of which label system is used.
What foods contain INS 303?
INS 303 (Potassium Ascorbate) is commonly found in: cured meats, some beverages.
What is INS 303 made from?
INS 303 can be derived from: synthetic.
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