Also known as: Polydimethylsiloxane, PDMS
Dimethicone is a silicone polymer widely used in skincare and cosmetics for its smooth, silky skin feel. It forms a breathable film on the skin surface that reduces water loss without fully occluding the skin. It improves product spreadability and provides a non-greasy finish. Often used in primers, moisturisers, and sunscreens. Generally non-comedogenic at typical use levels.
Comedogenicity ratings are based on the rabbit ear assay model. Individual skin responses vary. See our article on comedogenicity ratings for context.
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