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INCI ingredient

Thiolactic Acid

Thiolactic Acid appears on 8 ingredient lists in our database, most often in hair dyes.

What it triggers

  • Vegan originYesno animal source
  • FragranceNonot a perfume ingredient
  • ParabenNonot a preservative of this family
  • SulfateNonot a sulfate surfactant
  • SiliconeNonot a silicone
  • AlcoholNonot a drying alcohol

What it does

Thiolactic Acid appears on 8 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: antioxidant, depilatory, hair waving or straightening, fragrance, reducing

Products with Thiolactic Acid

in 8 products

Showing 8 of 8 products with this ingredient, most scanned first.

In the EU ingredient database

Functions listed by CosIng
  • antioxidant
  • depilatory
  • hair waving or straightening
  • fragrance
  • reducing
  • antioxidant: Inhibiting reactions promoted by oxygen, thus avoiding oxidation and rancidity.
  • 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).
  • fragrance: Imparting an odour or taste. Creating a perceivable pleasant smell and/or masking a bad smell.

CAS 79-42-5 · EC 201-206-5

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