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Acrylates/Dimethicone Copolymer

What Acrylates/Dimethicone Copolymer is & what it does

A silicone-acrylate film former that gives a smooth, water-resistant finish and helps hold filters and pigments in place. It improves staying power.

What is Acrylates/Dimethicone Copolymer and what does it do in sunscreen?

It is a silicone-acrylate film former that lays down a thin, flexible layer as the sunscreen dries. That film gives a smooth, even finish and helps hold the UV filters and any pigments in place on the skin. It is a big part of why some sunscreens feel silky and resist sweat and water.

Is Acrylates/Dimethicone Copolymer safe?

Yes. It is a large polymer that sits on the surface of the skin rather than absorbing into it, and it is well tolerated in leave-on products. Film formers like this are a standard, non-controversial part of modern water-resistant sunscreens. It is not a common irritant.

Does Acrylates/Dimethicone Copolymer clog pores?

Generally no. It is a lightweight film former rather than a heavy oil or wax, and it is considered low on the comedogenicity scale. It forms a breathable film, and the silicone part tends to feel light on skin. Very acne-prone skin can occasionally react to any film former, but it is not a notable pore-clogging flag.

Does Acrylates/Dimethicone Copolymer make sunscreen water-resistant?

It helps. The flexible film it forms is part of what keeps a sunscreen on the skin during sweating and swimming, which improves staying power and overall protection. It usually works alongside other water-resistant ingredients rather than doing the whole job alone. Always reapply after toweling off, since no film is permanent.

Is Acrylates/Dimethicone Copolymer natural or synthetic?

It is synthetic. It is a lab-made copolymer that joins acrylate units with dimethicone (a silicone), which is what gives it both a sturdy film and a smooth, slippery feel. Synthetic here just means it was engineered for staying power and texture, not that it is harsh.

Sunscreens with Acrylates/Dimethicone Copolymer

We rate 209 sunscreens that contain it, showing the top 10 by overall score:

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