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Ethylene/Propylene Copolymer

What Ethylene/Propylene Copolymer is & what it does

Ethylene/Propylene/Styrene Copolymer is a synthetic polymer built from ethylene, propylene, and styrene monomers. In cosmetics, including some sunscreens, it is used as a viscosity controlling and texturizing agent that helps thicken and stabilize the formula. A notable property is its oil-compatible nature, which makes it useful for structuring anhydrous or oil-rich bases.

What does Ethylene/Propylene Copolymer do in skincare?

It is a synthetic polymer used mainly as a thickener and texture or viscosity agent. It can help adjust a product's consistency and contribute to a smooth, stable feel. It is an inert film-forming type ingredient rather than a skincare active.

Is Ethylene/Propylene Copolymer natural or synthetic?

It is synthetic. The copolymer is made by combining ethylene and propylene units into a polymer chain. It is a petroleum-derived material rather than a botanical ingredient.

Is Ethylene/Propylene Copolymer safe?

Inert synthetic polymers like this are widely used in cosmetics as texture agents and are generally considered non-reactive on skin. Suitability still depends on the complete formula and individual skin, and we do not provide medical advice. It is not known as a common irritant.

Sunscreens with Ethylene/Propylene Copolymer

We rate 10 sunscreens that contain it:

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