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Is Isononyl Isononanoate vegetarian?

Isononyl Isononanoate

Vegetarian Vegetarian
Vegan Vegan

Isononyl Isononanoate is a synthetic ester formed from isononyl alcohol and isononanoic acid, used in cosmetics as an emollient and skin-conditioning agent.

Also known as 3,5,5-Trimethylhexyl 3,5,5-trimethylhexanoate, 42131-25-9
INCI name Isononyl Isononanoate
CAS number 59219-71-5
EC number 261-665-2
CosIng ID 76782
Last reviewed 9 July 2026

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

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