Composition and Properties
Silicone lube uses the element silicon as its base instead of carbon. Like lipid- and petroleum distilate-based lubes, silicone lubes are hydrophobic (repels water), and the lubricity is due to how the silicon molecules glide past one another when applied to the hand/toy and the hole.
Three to four different kinds of silicone are mixed together in a standard bottle of silicone lube: Dimethicone, Cyclopentasiloxane, Dimethiconol, and Phenyl Trimethicone.