Dimethicone/PEG-10/15 Crosspolymer

This is a silicone-based ingredient that helps create a smooth, silky, "bouncy" texture. It also acts as an emulsifier that prevents ingredients from separating in a formula.

Due to its large molecule size and water-insolubility, this ingredient is unlikely to be absorbed into skin. Irritation and sensitization tests have found reactions to silicones are considered very rare.

You'll likely see this ingredient in leave-on products at concentrations of 0.03%-3%.