Science
Mechanism of Action
This polymer primarily functions by absorbing significant volumes of water, leading to an increase in the viscosity of aqueous systems and the formation of desirable gel textures. Beyond its rheological control, POLYACRYLATE-38 also stabilizes emulsions by preventing the separation of oil and water phases. It forms a thin, imperceptible film on the skin's surface, which contributes to improved hydration and a smoother feel, concurrently offering a protective barrier against external irritants.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
POLYACRYLATE-38 generally exhibits good stability, with its viscosity benefiting from alkaline conditions. However, its thickening properties can be compromised, potentially leading to reduced viscosity or precipitation, in highly acidic environments (below pH 4.0) or in the presence of certain divalent metal ions which can cause molecular crosslinking and gelation.
Conflicts
- acids (may reduce viscosity or cause precipitation)
- divalent metal ions (e.g., aluminum, lead, iron, calcium, magnesium, zinc) which can cause molecular crosslinking and gelation/precipitation
Safety
Safety Profile
While a specific safety assessment for POLYACRYLATE-38 by the CIR Expert Panel is not available, the broader class of 'Acrylates Copolymers' has been deemed safe for cosmetic use when properly formulated to be non-irritating. The large polymeric structure of polyacrylates typically prevents skin penetration, contributing to a low intrinsic irritation risk. However, it is crucial to ensure low levels of residual acrylic acid monomers from manufacturing, as concentrations above approximately 300 PPM can potentially cause skin irritation. Related polymethacrylates are approved by the FDA for use in medical devices and as indirect food additives, indicating general safety within this class of materials.
Your Skin
Skin Compatibility
Our Assessment
Verdict
POLYACRYLATE-38 is a valuable ingredient for formulation, offering significant benefits in texture enhancement, emulsion stability, and skin feel, contributing to more elegant and effective skincare products.
Related
Similar Ingredients
Finding similar ingredients…