Bis-Dioctadecylamide Dimer Dilinoleic Acid/Ethylenediamine Copolymer
What is Bis-Dioctadecylamide Dimer Dilinoleic Acid/Ethylenediamine Copolymer?
Bis-Dioctadecylamide Dimer Dilinoleic Acid/Ethylenediamine Copolymer is a synthetic polymer from the polyamide class, formed by combining dimer dilinoleic acid—an unsaturated fatty acid dimer—with ethylenediamine and dioctadecylamide groups. Primarily featured in color cosmetics like lipsticks, lip glosses, and mascaras, it acts as a film-forming agent. Upon drying, it creates a flexible, transparent film that anchors pigments, waxes, and oils to the skin or lips. This structure boosts product durability, minimizes fading or smudging, and imparts a smooth, non-sticky texture. Its lipophilic properties enhance water and transfer resistance while maintaining breathability and comfort during wear. Commonly incorporated at trace levels, it supports advanced formulations without heaviness.
Benefits
Enhances makeup longevity by forming a durable yet flexible film
Improves pigment adhesion for reduced transfer and fading
Delivers a smooth, comfortable application feel on lips and skin
Who It's For
A quick guide for who this ingredient may suit (and who should be cautious).
| Who May Benefit | Who Should Avoid |
|---|---|
| Users desiring long-lasting lip color throughout the day | People preferring polymer-free or minimalist formulations |
| Individuals with active routines needing smudge-resistant makeup | Individuals sensitive to synthetic amides |
| Those seeking comfortable, non-tacky film-forming effects | Anyone who has reacted to similar film-formers in patch tests |
Safety Notes
- Considered low hazard with minimal irritation reports from assessments
- Non-comedogenic, making it suitable for routine cosmetic applications
Frequently Asked Questions about Bis-Dioctadecylamide Dimer Dilinoleic Acid/Ethylenediamine Copolymer
What role does it play in cosmetics?
It functions as a film-former, creating a flexible layer that improves product adhesion and wear time in lipsticks and similar items.
Is it safe for daily use?
Evaluated as low hazard with no significant concerns for typical cosmetic concentrations.
Does it work on all skin types?
Its non-comedogenic nature suits most, though patch testing is wise for sensitivities.