Methyl Methacrylate Crosspolymer
Ingredient Info
Methyl methacrylate crosspolymer is a synthetic polymer used primarily as a thickening and film-forming agent in skincare formulations. It helps create texture and consistency in products while potentially supporting preservative effectiveness.
Benefits
- Improves product texture and spreadability
- Creates a light film on skin
- May enhance preservative performance, allowing lower preservative levels in formulations
Potential concerns
- Limited safety data specific to skin application in published literature
- Synthetic polymer — may cause sensitivity in those with polymer sensitivities, though this is rare
Science: Research shows that methyl methacrylate crosspolymer at high concentrations (50,000 ppm) can reduce the effectiveness of common preservatives like 1,2-hexanediol against bacteria and fungi, suggesting it may interfere with preservative function rather than support it. Limited peer-reviewed data exists on direct skin safety and efficacy at typical use levels.
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