Last reviewed May 2026 · 1 min read
Is Potassium Hydroxide (E525) vegan?
Also known as: Caustic potash
E-number: E525
Vegan
Suitable for a vegan diet.
Yes — 100% synthetic mineral product.
01 · The basics
What is Potassium Hydroxide (E525)?
An acidity regulator and processing aid.
02 · The source
Where it comes from
100% synthetic mineral product.
Frequently asked
FAQ
Is E525 vegan?
Yes, it is mineral-based.
Commonly found in
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