Isopropyl Thioglycolate
INCI: ISOPROPYL THIOGLYCOLATE
Reviewed by Emma · Last updated 18 Aug 2026
What Is Isopropyl Thioglycolate?
Isopropyl Thioglycolate (INCI: ISOPROPYL THIOGLYCOLATE) is a cosmetic ingredient listed in the EU CosIng inventory. Acetic acid, mercapto-, 1-methylethyl ester.
Its declared cosmetic function is hair waving or straightening.
Source: European Commission CosIng inventory.
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