Last reviewed May 2026 · 1 min read
Is Colloidal Silicon Dioxide vegan?
Also known as: Aerosil
E-number: E551
Vegan
Suitable for a vegan diet.
Yes — Produced from mineral sand.
01 · The basics
What is Colloidal Silicon Dioxide?
A very fine form of silica used as a glidant to help powders flow in manufacturing.
02 · The source
Where it comes from
Produced from mineral sand. 100% mineral-based.
Frequently asked
FAQ
Is colloidal silica vegan?
Yes, it is a mineral-based product.
Commonly found in
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