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Is Polymethylsilsesquioxane vegetarian?

Polymethylsilsesquioxane

Vegetarian Vegetarian
Vegan Vegan

Polymethylsilsesquioxane is a synthetic silicone polymer formed by the hydrolysis and condensation of methyltrimethoxysilane, used in cosmetics as a texturizing and soft-focus powder.

Also known as PMSQ
INCI name Polymethylsilsesquioxane
CAS number 68554-70-1
CosIng ID 79017
Last reviewed 9 July 2026

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

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