skincarecheck
INCI ingredient

Threonine

Threonine appears on 80 ingredient lists in our database, most often in sunscreens.

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

Threonine appears on 80 ingredient lists in our database, most often in sunscreens.

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: antistatic, hair conditioning, hair waving or straightening

Products with Threonine

in 80 products

Showing 24 of 80 products with this ingredient, most scanned first.

In the EU ingredient database

Functions listed by CosIng
  • antistatic
  • hair conditioning
  • hair waving or straightening
  • antistatic: Preventing and/or reducing static electricity by neutralising electrical charge on surfaces.
  • hair conditioning: Enhancing the appearance and feel of hair. Leaving the hair easy to comb, supple, soft and shiny and/or imparting volume, lightness, gloss, texture, etc.
  • 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).

CAS 72-19-5 / 80-68-2 · EC 200-774-1 / 201-300-6

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