Last reviewed May 2026 · 1 min read

Is Methylisothiazolinone vegan?

Also known as: MIT, MI

Vegan

Suitable for a vegan diet.

See all vegan ingredients →

In short

Yes — 100% synthetic.

01 · The basics

What is Methylisothiazolinone?

A powerful synthetic biocide and preservative.

02 · The source

Where it comes from

100% synthetic. Vegan.

Frequently asked

FAQ

Is MIT vegan?

Yes, synthetic (though highly restricted in leave-on products due to allergies).

Commonly found in

Liquid soapsShampoos
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