Butyl Thioglycolate
molecular structure · PubChem
AKA: 10047-28-6, Butyl mercaptoacetate, Butyl 2-mercaptoacetate, Acetic acid, Butyl ester
Synthetic
Not Clean
Based on the available data, the CIR Expert Panel concluded that ... Butyl Thioglycolate is safe for use in hair straighteners, permanent waves, tonics, dressings, and so forth, wave sets, other non-coloring hair products, and hair dyes and colors, as described in this safety assessment, at concentrations up to 15.2% (as Thioglycolic Acid). Hairdressers should avoid skin contact and minimize consumer skin exposure.
Formula
C6H12O2S
Mol. Weight
148.23
CAS #
10047-28-6
Form
Liquid
Functions
Hair Waving Or Straightening
Anti-Inflammatory
Boosts Collagen
Wound Healing
Changes hair texture
Traditional Use
Synthetic reducing agent developed in the mid-20th century for hair permanent wave and depilatory products. Created to break disulfide bonds in hair and dissolve protein structures for chemical hair treatment.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Caution
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR