skincarecheck
INCI ingredient

Polybutylene Terephthalate

Polybutylene Terephthalate appears on 15 ingredient lists in our database, most often in face makeups.

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

Polybutylene Terephthalate appears on 15 ingredient lists in our database, most often in face makeups.

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: film forming, viscosity controlling

In the EU ingredient database

Functions listed by CosIng
  • film forming
  • viscosity controlling
  • film forming: Producing (upon application) a continuous film on the skin, hair or nails.
  • viscosity controlling: Increasing or decreasing the viscosity (thickness) of cosmetics.

CAS 26062-94-2

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