Science
Mechanism of Action
This copolymer operates by forming a uniform, continuous film upon application to the skin, hair, or nails, thereby providing a protective barrier. It also serves as a plasticizer, which contributes to the softening and smoothing of the skin's surface. Furthermore, its emollient properties aid in conditioning the skin, and it can modify the viscosity of cosmetic formulations.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
The ingredient demonstrates stability under normal conditions but is susceptible to hydrolysis in environments of strong acidity or alkalinity.
Conflicts
- strong oxidants
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has noted 'insufficient data' for the direct safety determination of DILINOLEIC ACID/BUTANEDIOL COPOLYMER. While Dilinoleic Acid, one of its monomers, was deemed safe by CIR in 2019 when formulated to be non-irritating and non-sensitizing, the other monomer, 1,4-Butanediol, also has 'insufficient data' for cosmetic use according to CIR. It is important to note that the FDA has issued a Class I Health Hazard warning for ingested 1,4-Butanediol in dietary supplements, which does not pertain to its topical cosmetic application. The Environmental Working Group (EWG) assesses this ingredient as having low concerns for cancer, allergies & immunotoxicity, and developmental and reproductive toxicity.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This copolymer offers beneficial film-forming, plasticizing, and emollient properties with low reported irritancy and comedogenicity, but its safety profile is limited by 'insufficient data' from CIR for the ingredient itself.
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