Cyclotetrasiloxane
A cosmetic ingredient used as hair conditioning, skin conditioning - emollient, solvent in skincare, haircare, and personal-care products sold in the European Union.
What is it?
Octamethylcyclotetrasiloxane
What does it do?
Cyclotetrasiloxane is listed in the EU cosmetic ingredient inventory with the following declared functions:
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Hair conditioning
improves the appearance, feel, and manageability of hair
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Skin conditioning - emollient
softens the skin by reducing roughness and friction between skin cells
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Solvent
dissolves other ingredients into a uniform liquid phase
EU regulatory status
This ingredient is banned in the European Union.
Cyclotetrasiloxane is listed under Annex II of EU Cosmetics Regulation 1223/2009 (entry 1388), making it prohibited in cosmetic products placed on the EU market.
Frequently asked questions
What is Cyclotetrasiloxane?
Cyclotetrasiloxane is a cosmetic ingredient catalogued in the EU CosIng database. Octamethylcyclotetrasiloxane
Is Cyclotetrasiloxane allowed in cosmetics in the EU?
No. Cyclotetrasiloxane is banned for use in cosmetic products in the EU under Annex II of Regulation 1223/2009.
What does Cyclotetrasiloxane do in cosmetic products?
Cyclotetrasiloxane is declared in the EU cosmetic ingredient inventory with these functions: hair conditioning, skin conditioning - emollient, solvent.
What is the CAS number of Cyclotetrasiloxane?
The CAS (Chemical Abstracts Service) number for Cyclotetrasiloxane is 556-67-2 / 293-51-6.
Related ingredients
Source: EU CosIng database (European Commission). This page is derived from public-sector information published by the European Commission. · Last updated: 30/07/2020