CheckVegan

Is Polyphenylsilsesquioxane vegetarian?

Polyphenylsilsesquioxane

Vegetarian Vegetarian
Vegan Vegan

Polyphenylsilsesquioxane is a synthetic polymeric silicone resin composed of repeating units bearing phenyl groups, used as a film-former in cosmetics.

INCI name Polyphenylsilsesquioxane
CAS number 70131-69-0
CosIng ID 82220
Last reviewed 9 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