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Is Thiodipropionic Acid vegan?

Thiodipropionic Acid

Vegan Vegan
Vegetarian Vegetarian

Thiodipropionic acid is a synthetic organic sulfur compound used as an antioxidant in cosmetics and industrial products to inhibit oxidative degradation.

Also known as 3,3'-Thiodipropionic Acid
INCI name Thiodipropionic Acid
E number E388
INS number 388
CAS number 111-17-1
EC number 203-841-3
CosIng ID 60300
Last reviewed 10 July 2026

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

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