What it is
This is a crosslinked polymer formed from glycol dimethacrylate monomers, producing an insoluble three-dimensional network that is dispersed in cosmetic formulas. In sunscreens and emulsions it helps form a cohesive film on the skin and can improve the spread and finish of the product. The crosslinked structure is essentially inert and remains on the skin surface rather than penetrating.
Safety & warnings
As a large, crosslinked, water-insoluble polymer it is generally well tolerated and is not associated with significant irritation or sensitization in typical use.
Origin & sourcing
Synthetic, manufactured by polymerizing and crosslinking dimethacrylate monomers.
Questions everyone asks
What does glycol dimethacrylate crosspolymer do in a sunscreen?
It acts as a film former and texture modifier, helping the product form an even layer on the skin and improving its feel and spreadability.
Does it absorb into the skin?
No. It is a large, crosslinked, insoluble polymer that stays on the skin surface rather than penetrating.