CheckVegan

Is Isostearyl Isononanoate vegetarian?

Isostearyl Isononanoate

Vegetarian Unconfirmed
Vegan Vegan

Isostearyl Isononanoate is an ester of isostearyl alcohol and isononanoic acid, used as an emollient in cosmetics. The fatty components may be derived from plant or synthetic sources.

Also known as Hexanoic acid, 3,5,5-trimethyl-, isooctadecyl ester
INCI name Isostearyl Isononanoate
CAS number 90967-66-1
CosIng ID 77856
Last reviewed 4 July 2026

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

Classifications are made to the best of our knowledge based on available scientific and regulatory sources. We cannot guarantee the accuracy of every entry, errors in the sources we draw from can always occur. This tool also cannot account for cross-contamination, which depends entirely on individual suppliers and producers. If you believe a classification is incorrect, you can report an issue.

Report an issue