Science
Mechanism of Action
This copolymer utilizes a thixotropic mechanism, meaning it thins under friction for seamless spreadability and then reforms into a structured, vapor-permeable film once settled. This film acts as a flexible moisture trap that reduces transepidermal water loss (TEWL) without occluding pores, while simultaneously anchoring pigments or active ingredients for extended wear.
Research
Clinical Evidence
High confidence5%
Key findings
- 01 In vitro and clinical testing (Patent KR102375282B1) confirmed that levels as low as 0.5% significantly enhance moisturizing power and reduce TEWL through the formation of a thixotropic, non-occlusive film.
- 02 Evaluation in eye-area formulations (Patent US11517511B2) demonstrated that a 5% concentration optimizes adhesion, water resistance, and finish smoothness without irritation.
Transparency
Dusting Analysis
Typically used at functional levels to achieve specific textural or long-wear properties; however, concentrations below 0.5% are unlikely to provide the barrier-protective film benefits identified in clinical patents.
The Formula
Formulation
Stability
Highly robust within standard cosmetic pH ranges. Due to its hydrophobic nature, it must be integrated into the oil or silicone phase of a formulation.
Synergies
- Mineral pigments
- UV filters
- Ceramides
- Volatile silicones
Conflicts
- pH levels below 3.5 (may cause polymer degradation)
- Unemulsified, high-polarity water systems
Safety
Safety Profile
Classified as safe by the CIR Expert Panel because its high molecular weight prevents it from being absorbed into the skin.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A versatile, high-tech polymer that provides essential barrier support and improves product durability with an exceptional safety profile.
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References
Sources