Dimethicone/Vinyltrimethylsiloxysilicate Crosspolymer

Dimethicone/vinyltrimethylsiloxysilicate crosspolymer is a synthetic silicone ingredient made by chemically linking silicone molecules together to form a larger, cross-linked structure. This creates a stable polymer that functions as both a film former and viscosity controller in skincare formulations.In skincare products, it works to create a light, smooth texture on the skin's surface. The crosspolymer structure allows it to form a thin, flexible film that sits on top of the skin without necessarily penetrating it. It's commonly used to improve the sensory experience of products—helping t…

The crosspolymer creates a continuous, flexible film when applied to skin. Because the silicone molecules are linked together in a network structure, the resulting film is more stable and cohesive than a simple silicone oil would be, allowing it to sit on the skin's surface longer without migrating or breaking down quickly.This film can help reduce water evaporation from the skin (occlusive effect) whilst remaining breathable. The ingredient also acts as a viscosity modifier in the product itself, affecting how thick or thin the formulation feels and how easily it spreads.

This ingredient is typically a background component in formulations rather than a star active, so you don't need to use it in a particular way. It's included at the formulation stage to improve product texture and performance. Simply use your product as directed by the brand.

Generally well-tolerated and considered safe at cosmetic use concentrations. It is a synthetic silicone, so those avoiding silicones for personal reasons may wish to check ingredient lists.