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Is Steartrimonium Methosulfate vegetarian?

Steartrimonium Methosulfate

Steartrimonium Methosulfate is a quaternary ammonium compound derived from stearyl alcohol, used as a hair conditioning and antistatic agent. The stearyl alcohol may be sourced from plant oils or animal fats.

Also known as Trimethyl(octadecyl)ammonium methyl sulphate
INCI name Steartrimonium Methosulfate
CAS number 18684-11-2
EC number 242-501-9
CosIng ID 79084
Last reviewed 9 July 2026

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

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