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Is Cetyl Trimethoxysilane vegetarian?

Cetyl Trimethoxysilane

Vegetarian Vegetarian
Vegan Vegan

Cetyl Trimethoxysilane is a synthetic organosilicon compound used as a surface treatment agent or coupling agent in cosmetic formulations.

Also known as Silane, hexadecyltrimethoxy-
INCI name Cetyl Trimethoxysilane
CAS number 16415-12-6
EC number 240-464-3
CosIng ID 90637
Last reviewed 9 July 2026

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

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