Dilinoleic Acid/Propanediol Copolymer
What is Dilinoleic Acid/Propanediol Copolymer?
Dilinoleic Acid/Propanediol Copolymer is a synthetic polyester formed by esterifying dilinoleic acid—a dimerized linoleic acid derived from vegetable oils such as safflower—and 1,3-propanediol, a renewable diol from corn-derived glucose. Primarily categorized as a film-forming agent and skin conditioning emollient in cosmetics, it functions by depositing a thin, elastic, non-occlusive film on the skin or hair surface. This film enhances product durability, promotes even application, and imparts a smooth texture without stickiness. Commonly found in lip colors, mascaras, and hair styling products, it improves wear resistance and flexibility while supporting moisture retention through its emollient properties. Regulatory bodies like the Cosmetic Ingredient Review assess similar copolymers as safe for use in rinse-off and leave-on formulations at typical concentrations.
Benefits
Creates a flexible film that extends makeup wear on lips and skin.
Provides lightweight conditioning for smoother texture on skin and hair.
Supports non-greasy adhesion without clogging pores.
Who It's For
A quick guide for who this ingredient may suit (and who should be cautious).
| Who May Benefit | Who Should Avoid |
|---|---|
| People desiring long-lasting color cosmetics. | Those with rare allergies to fatty acid derivatives. |
| Individuals with normal to dry skin seeking emollient effects. | People sensitive to synthetic polymers. |
| Users preferring breathable, flexible product films. | Individuals preferring entirely natural ingredient profiles. |
Safety Notes
- Rated low hazard by EWG with scores of 1.
- Deemed safe in cosmetic use by Cosmetic Ingredient Review assessments.
Frequently Asked Questions about Dilinoleic Acid/Propanediol Copolymer
What does it do in skincare?
It forms a flexible film to boost product staying power and condition skin.
Is it safe for daily use?
Yes, with low hazard ratings from EWG and safety affirmations in reviews.
Does it cause breakouts?
No, it has a comedogenic rating of 0 for minimal acne risk.