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Is Ammonium Thiolactate vegetarian?

Ammonium Thiolactate

Vegetarian Vegetarian
Vegan Vegan

Ammonium thiolactate is the ammonium salt of thiolactic acid (2-mercaptopropionic acid), a synthetic compound used as a reducing agent in cosmetic hair-waving products.

Also known as Ammonium 2-Mercaptopropionate
INCI name Ammonium Thiolactate
CAS number 13419-67-5
EC number 236-526-4
CosIng ID 74430
Last reviewed 9 July 2026

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

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