What it is
This is a copolymer of acrylate monomers with long-chain (C12-22) alkyl methacrylates, giving it both film-forming ability and oil-compatible character. It forms a flexible, cohesive film that improves wear, evenness, and rub-off resistance of sunscreens and color cosmetics, and can help stabilize emulsions and adjust texture. It is widely used to enhance the longevity and uniformity of applied products.
Safety & warnings
As a large polymer that stays on the skin surface, this ingredient is generally well tolerated with a low expected likelihood of irritation or sensitization.
Origin & sourcing
A fully synthetic polymer produced by copolymerizing acrylate and long-chain alkyl methacrylate monomers.
Questions everyone asks
What does this copolymer do in sunscreen?
It forms a thin, flexible film that helps the product wear evenly and resist rubbing off while improving texture.
Does it absorb into the skin?
No, it is a large polymer that remains on the skin surface as a cosmetic film rather than penetrating.