skincarecheck
INCI ingredient

Cyclopentasiloxane

Also listed as: D5, Cyclopentasiloxane / Dimethicone, Ingredients Cyclopentasiloxane

A light, fast-evaporating silicone that gives serums and primers their weightless feel.

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 Cyclopentasiloxane, its silicone-free answer is No. Nothing else changes.

What it does

Cyclopentasiloxane spreads other ingredients across the skin or hair and then evaporates, leaving a smooth finish. The EU restricts it in rinse-off products.

It is a silicone, so a product that lists it is not silicone-free.

Functions: emollient, solvent

Products with Cyclopentasiloxane

in 532 products

Showing 24 of 532 products with this ingredient, most scanned first.

In the EU ingredient database

Functions listed by CosIng
  • skin conditioning - emollient
  • hair conditioning
  • skin conditioning
  • solvent
  • skin conditioning - emollient: Acting as lubricants on the skin surface providing the skin with a soft and smooth appearance.
  • 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.
  • skin conditioning: Maintaining the skin in good condition.
  • solvent: Dissolving other components of cosmetics. Solvents are usually liquids (aqueous and nonaqueous).

CAS 541-02-6 · EC 208-764-9

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.

Silicone-free instead

Classification from the INCI name; product lists from Open Beauty Facts.Report a mistake