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Is Isoamyl Stearate vegetarian?

Isoamyl Stearate

Isoamyl Stearate is an ester of isoamyl alcohol and stearic acid, used as an emollient in cosmetics; the stearic acid component can be sourced from either plant or animal fats.

Also known as Octadecanoic acid, 3-methylbutyl ester
INCI name Isoamyl Stearate
CAS number 627-88-3
EC number 211-015-9
CosIng ID 91752
Last reviewed 4 July 2026

An ingredient is considered vegetarian if it avoids components derived from killing an animal.

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