Dimethicone is a polydimethylsiloxane obtained by hydrolysis and polycondensation of dichlorodimethyl silane and chlorotrimethylsilane. The degree of polymerization (n = 20–400) is such that materials with kinematic viscosities nominally 20–1300 mm²/s (20–1300 cSt) are produced.
|Typical use level|
O/W emulsion: 0.5 - 5.0% Creams, lotions, ointments: 10 - 30%
|Benefits / Claims|
Emollient in pharmaceutical topical formulations
Antifoaming agent in O/W emulsion
Dimethicone is hydrophobic and is also widely used in topical barrier preparations