skincarecheck
INCI ingredient

Cyclotetrasiloxane

Cyclotetrasiloxane appears on 5 ingredient lists in our database, most often in antiperspirants.

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

What it does

Cyclotetrasiloxane appears on 5 ingredient lists in our database, most often in antiperspirants.

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: skin conditioning - emollient, hair conditioning, solvent

In the EU ingredient database

Functions listed by CosIng
  • skin conditioning - emollient
  • hair 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.
  • solvent: Dissolving other components of cosmetics. Solvents are usually liquids (aqueous and nonaqueous).

CAS 556-67-2 / 293-51-6 · EC 209-136-7 / -

EU regulation

Listed in Annex II (ref. 1388) of the EU Cosmetics Regulation. II/1388

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