skincarecheck
INCI ingredient

Polyphenylsilsesquioxane

Polyphenylsilsesquioxane appears on 2 ingredient lists in our database, most often in sunscreens.

What it triggers

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

If a product lists Polyphenylsilsesquioxane, its silicone-free answer is No. Nothing else changes.

What it does

Polyphenylsilsesquioxane appears on 2 ingredient lists in our database, most often in sunscreens.

On the label it counts as silicone, which is why a product that lists it cannot be silicone-free.

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, opacifying

Products with Polyphenylsilsesquioxane

in 2 products

In the EU ingredient database

Functions listed by CosIng
  • binding
  • film forming
  • opacifying
  • 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.
  • opacifying: Reducing transparency or translucency of cosmetics.

CAS 70131-69-0

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