Is Sodium PG-Propyl Thiosulfate Dimethicone vegetarian?

Sodium PG-Propyl Thiosulfate Dimethicone is a silicone polymer terminated with a hydroxy-sulfothio-propyl group in its disodium salt form, used as a conditioning agent in hair care cosmetics.

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

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