Last reviewed May 2026 · 1 min read

Is Isobutane vegan?

Also known as: E943b

E-number: E943b

Vegan

Suitable for a vegan diet.

See all vegan ingredients →

In short

Yes — Produced from petroleum.

01 · The basics

What is Isobutane?

A gas used as a propellant in aerosol sprays.

02 · The source

Where it comes from

Produced from petroleum. 100% vegan.

Frequently asked

FAQ

Is isobutane vegan?

Yes, it is synthetic.

Commonly found in

Deodorant spraysHairsprayCooking sprays
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