Is Butyl Isostearate vegan?

Butyl Isostearate

Vegan

Butyl Isostearate is the butyl ester of isostearic acid, a synthetic branched-chain fatty acid ester used as an emollient in cosmetic formulations.

Also known as Butyl 16-Methylheptadecanoate
INCI name Butyl Isostearate
CAS number 94109-07-6
EC number 302-444-3
CosIng ID 74745
Last reviewed 4 July 2026

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