Science
Mechanism of Action
This ingredient operates as a polymeric conditioner and emollient, facilitating superior adherence to the skin's surface for enhanced softening and smoothing. Simultaneously, it acts as a film-former, creating a protective, water-repellent layer that improves product durability and skin barrier function.
Research
Clinical Evidence
Low confidenceN/A
Key findings
- 01 Clinical data indicate that related copolymers within this complex demonstrate superior deposition on skin and hair in concentrations between 0.25% and 2%. Additionally, concentrations from 1% to 10% have shown efficacy in enhancing cosmetic wear, providing excellent adhesion for water-resistant sunscreens, and contributing to the durability of barrier creams.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Polymeric polyurethanes, including IPDI copolymers, generally exhibit thermolytic stability and resistance to hydrolysis across a wide pH range, with a component (Di-PEG-2 Soyamine/IPDI Copolymer) noted for excellent solubility over diverse pH conditions.
Safety
Safety Profile
The CIR Expert Panel has determined that there is insufficient data specifically for this ingredient, though PEG propylene glycol derivatives are broadly considered safe. However, a Safety Data Sheet for a component, Polydiethylene Glycol Adipate/IPDI Copolymer, classifies it as a Skin Irritant (Category 2) and Skin Sensitizer (Category 1) at concentrations of 20-40%. This indicates a potential for moderate burning, redness, and allergic reactions upon contact, particularly with pre-existing sensitivity or prolonged exposure. Concerns regarding respiratory effects are noted if used in inhalable forms.
Your Skin
Skin Compatibility
Our Assessment
Verdict
While offering notable conditioning and film-forming benefits, the insufficient safety data and reported high irritancy potential for a component copolymer warrant caution in skincare formulations.
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References
Sources