Is E555 Vegan? Potassium Aluminium Silicate
E555 (Potassium Aluminium Silicate) is vegan. It is derived from mineral, with no animal involvement in standard food production.
Why is E555 vegan?
The source of Potassium Aluminium Silicate is mineral, which is plant-derived, mineral or synthetic — all acceptable for vegans.
Is E555 vegetarian?
E555 is vegetarian.
What should vegans do about E555?
If you're avoiding Potassium Aluminium Silicate, look for products without E555 in the ingredients list.
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Helpful for vegan label reading
Resources for vegans checking E-numbers like E555
Vegan Ingredient Guide
Spot hidden animal-derived E-numbers including E555 on any food label.
Vegan Label Reading
Books and pocket cards that decode E-numbers and hidden animal additives in seconds.
Certified Vegan Foods
Products with vegan certification logos — no ingredient-by-ingredient guessing.
E555 vegan FAQs
Is E555 vegan?
E555 is always vegan: mineral.
Is E555 always non-vegan?
No — E555 is always vegan. It is derived from mineral in all standard food uses.
How can I tell if E555 is vegan in a specific product?
You don't need to check for E555 specifically — it is always vegan. Look for vegan certification logos if you want a full product-level guarantee.
Other additives to watch for vegans
Worth knowing about E555
E555 is correctly shown as vegan here — it's a mineral (potassium aluminium silicate, drawn from naturally occurring muscovite mica), with no animal involvement at any stage. Worth knowing if you've found this page while checking a label: E555's safety rating on this site was recently updated from a plain 'safe' to 'some concerns' after EFSA's 2020 re-evaluation found its safety 'could not be assessed' and flagged a possible aluminium exposure issue — a separate question from whether it's vegan, which it clearly is. See the full safety verdict →
SANHA (South African National Halaal Authority) E555 classification
Data: Open Food Facts (ODbL). Vegan status reflects the most common source — always verify with manufacturer or look for certified vegan labelling.