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 derived from the milled inner bark of the Quillaja saponaria tree.
01 · The basics
What is Quillaia Extract?
A natural extract used primarily to create thick, stable foams in beverages.
02 · The source
Where it comes from
It is derived from the milled inner bark of the Quillaja saponaria tree. It is 100% plant-based.
Frequently asked
FAQ
Is Quillaia Extract vegan?
Yes, it is a tree bark extract.
Why is it in my root beer?
It contains natural saponins that create the signature foamy head when you pour root beer into a glass.
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