Last reviewed May 2026 · 1 min read
Is Quillaia Extract vegan?
Also known as: Soapbark extract, E999
E-number: E999
Vegan
Suitable for a vegan diet.
Yes — It is obtained by aqueous extraction of the milled inner bark or wood of the soapbark tree (Quillaja saponaria).
01 · The basics
What is Quillaia Extract?
A natural extract used as a foaming agent in beverages.
02 · The source
Where it comes from
It is obtained by aqueous extraction of the milled inner bark or wood of the soapbark tree (Quillaja saponaria). It is 100% plant-derived.
Frequently asked
FAQ
Is Quillaia Extract vegan?
Yes, it is a pure plant extract from the bark of a tree.
Why is it used in root beer?
It contains saponins, which create the thick, long-lasting head of foam that is traditional in root beer and cream sodas.
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