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INCI ingredient

Thioglycerin

Thioglycerin appears on 49 ingredient lists in our database, most often in hair dyes.

What it triggers

  • Vegan originNot sureorigin not on file
  • FragranceNonot a perfume ingredient
  • ParabenNonot a preservative of this family
  • SulfateNonot a sulfate surfactant
  • SiliconeNonot a silicone
  • AlcoholNonot a drying alcohol

What it does

Thioglycerin appears on 49 ingredient lists in our database, most often in hair dyes.

It does not belong to any of the six groups we check, so it never changes a verdict.

We have not written the plain-language note for this ingredient yet; the facts above come straight from how it is classified.

Functions: depilatory, hair waving or straightening, keratolytic, reducing

In the EU ingredient database

Functions listed by CosIng
  • depilatory
  • hair waving or straightening
  • keratolytic
  • reducing
  • depilatory: Breaking down the the mechanical strength of hair fibers so that they can be removed by mild scraping/rubbing.
  • hair waving or straightening: Modifying the chemical structure of the hair, allowing it to be set in the style required (permanent waves or hair straightening).
  • keratolytic: Helping to eliminate the dead cells of the stratum corneum.
  • reducing: Changing the chemical nature of another ingredient by adding hydrogen (or removing oxygen).

CAS 96-27-5 · EC 202-495-0

EU regulation

Not on a restricted-substances annex. Listed as an allowed cosmetic ingredient.

Source: CosIng, European Commission. Informative, no legal value; the regulation text is the reference.

Classification from the INCI name; product lists from Open Beauty Facts.Report a mistake