Is Sodium PG-Propyl Thiosulfate Dimethicone vegan?

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 vegan if it contains no animal-derived components at any point in its production.

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