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Dilinoleic Acid/Butanediol Copolymer

What Dilinoleic Acid/Butanediol Copolymer is & what it does

Dilinoleic Acid/Butanediol Copolymer is a synthetic polyester made by reacting dilinoleic acid, a fatty acid dimer, with butanediol. In skincare and sunscreen products it functions mainly as a skin conditioning agent and emollient, lending a soft, cushiony texture. A notable property is its water resistant, lipophilic character, which can help formulas feel more durable on the skin.

What does Dilinoleic Acid/Butanediol Copolymer do in skincare?

Dilinoleic Acid/Butanediol Copolymer works mainly as an emollient and skin conditioning agent. It lends a soft, cushiony texture and has a water resistant character that can help a formula feel more durable on the skin. This makes it useful in long-wear and sunscreen products.

Is Dilinoleic Acid/Butanediol Copolymer comedogenic?

There is no strong evidence ranking this copolymer as notably comedogenic. It is a large polyester molecule used at modest levels as an emollient. As with many oil-compatible ingredients, individual results can vary, so those very prone to clogged pores may prefer to monitor how their skin responds.

Is Dilinoleic Acid/Butanediol Copolymer natural or synthetic?

It is synthetic. The ingredient is made by reacting dilinoleic acid, a fatty acid dimer, with butanediol to form a polyester. While the fatty acid portion can be derived from plant oils, the finished copolymer is a processed, lab-made material.

Sunscreens with Dilinoleic Acid/Butanediol Copolymer

We rate 14 sunscreens that contain it, showing the top 10 by overall score:

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