skincarecheck
INCI ingredient

Polyisobutene

Polyisobutene appears on 91 ingredient lists in our database.

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

Polyisobutene appears on 91 ingredient lists in our database.

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: binding, film forming, viscosity controlling

Products with Polyisobutene

in 91 products

Showing 24 of 91 products with this ingredient, most scanned first.

In the EU ingredient database

Functions listed by CosIng
  • binding
  • film forming
  • viscosity controlling
  • binding: Providing adhesive properties during and after compression in cosmetic tablets and/or cakes.
  • 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 9003-27-4

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