Cetearyl Dimethicone Crosspolymer

Cetearyl Dimethicone Crosspolymer is a synthetic silicone-based ingredient formed by chemically linking dimethicone (a common silicone oil) with cetearyl alcohol, a fatty alcohol derived from plant or petrochemical sources. The crosslinking creates a three-dimensional polymer network.In skincare and cosmetic formulations, this ingredient primarily functions as a film-forming and texture agent. It is most commonly used in hair care products to provide hold, smoothness, and styling control, though it appears occasionally in skincare formulations where its properties may contribute to texture …

Cetearyl Dimethicone Crosspolymer functions by forming a flexible film across the skin surface. The crosslinked silicone structure allows it to remain stable whilst providing slip and smoothness, similar to other silicone polymers used in skincare.Because it is a crosspolymer (chemically bonded rather than a simple oil), it does not migrate or spread as readily as linear silicones, potentially offering more targeted deposition where applied.

This ingredient is typically formulated at low concentrations (usually under 1%) to avoid an over-textured or artificial feel. It works best in rinse-off products or leave-on formulations designed for a matte or refined finish. If included in a cleanser or mask, it will be removed during rinsing; in serums or primers, it will remain on the skin until cleansing.

Cetearyl Dimethicone Crosspolymer is generally well-tolerated and has a long history of safe use in cosmetics. It is not known to be a skin sensitiser or irritant at typical use levels.