Science
Mechanism of Action
This crosspolymer functions primarily by forming a durable, continuous film on the skin's surface. Its phosphorylcholine (MPC) components are highly hydrophilic, enabling the creation of a deeply hydrated structure that acts as a humectant to attract and retain moisture. This lubricious and hydrated layer not only conditions the skin but also helps to deter the adhesion of proteins and lipids, reinforcing the skin's natural protective barrier.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 Acrylic Acid/Phosphorylcholine Glycol Acrylate Crosspolymer, a related phosphorylcholine polymer evaluated in the same safety assessment, has been reported in leave-on products like foundations at concentrations up to 0.18%.
- 02 A 5% solution of poly(2-methacryloyloxyethyl phosphorylcholine-co-n-butyl methacrylate), another related phosphorylcholine polymer, was observed to remain on the skin surface in rat skin experiments. This formulation effectively reduced the skin penetration of methylparaben by 54.8% and n-butylparaben by 85.6%, suggesting a barrier-enhancing capability.
Transparency
Dusting Analysis
This ingredient, primarily a film-forming and skin-conditioning polymer, is not typically subject to 'dusting' concerns related to active ingredient efficacy or formulation integrity.
The Formula
Formulation
Stability
Related phosphorylcholine polymers demonstrate high stability across diverse biological conditions, with increased molecular weight contributing to enhanced stability. They are also resilient to common sterilization methods such as γ-ray, ethylene oxide gas, and autoclave sterilization, indicating robust general polymer stability for this ingredient.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has affirmed the safety of PHOSPHORYLCHOLINE GLYCOL METHACRYLATE/PEG-10 DIMETHACRYLATE CROSSPOLYMER and related acryloyloxyethyl phosphorylcholine polymers for cosmetic use under current practices. Due to their large molecular size, these polymers are considered unlikely to penetrate the skin significantly. Data on related polymers indicate monomer levels are typically less than 100 ppm, which is below concentrations known to induce dermal sensitization. Although Methyl Methacrylate Crosspolymer (a related polymer) can cause minor skin and eye irritation, this ingredient group is generally safe when formulated to be non-irritating.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This polymer is a valuable ingredient, safely enhancing skin hydration, reinforcing barrier function, and improving texture across various skin types through its film-forming and humectant properties.
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