Dimethicone, also known as dimethylpolysiloxane or Polydimethylsiloxane (PDMS), is an organosilicon polymer. Dimethylpolysiloxane is the most popular silicon-based organic polymer in the skincare industry and medicine thanks to its beneficial properties.

Simethicone also called activated dimethicone is a mixture of PDMS and silicon dioxide used in pediatric practice as an antifoaming agent and carminative to decrease gas bubble formation in newborns' gut and ameliorate discomfort. It's also is the principal component in silicone breast implants.

Dimethicone is usually used in oil-free facial moisturizers. It decreases transdermal water loss without a greasy feel.  PDMS has occlusive and emollient properties and suitable for acne and sensitive skin as it is non-comedogenic and hypoallergenic. It is also used in hair care formulations as a conditioning agent.

CIR Expert Panel threat dimethicone as "safe as used in cosmetic formulations".

Products containing Dimethicone