Dimethicone
Well-tolerated
INCI · DimethiconeCAS 9006-65-9
Also known as: Polydimethylsiloxane · PDMS
OcclusiveConditioningEmollient
In plain language
A widely used linear silicone polymer that forms a breathable, protective barrier on the skin, reducing transepidermal water loss.
Imparts a silky, non-greasy feel to formulations and protects the skin barrier.
Does not 'suffocate' the skin or cause acne; it is highly non-comedogenic.
Benefits
Myth — unsupported
Silicones suffocate the skin
Dimethicone forms a porous, permeable matrix on the skin, allowing gases like oxygen and water vapor to pass through freely.
Strong evidence
Where it can be sold
Simplified regulatory status by market — for guidance, not compliance advice.
European UnionAllowed
01
Safety Assessment of Polyacrylamide and Acrylamide Residues in Cosmetics ↗
Cosmetic Ingredient Review · 2005
Regulatory