Science
Mechanism of Action
This polymer primarily functions as a film-former, creating a protective, continuous layer on the skin's surface. Concurrently, it acts as a humectant by forming hydrogen bonds with water molecules, actively retaining moisture within cosmetic formulations and on the skin, thereby reducing water evaporation and promoting long-term hydration.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Aqueous solutions exhibit stability within an acidic pH range of 3.0 to 5.0. For long-term storage, the ingredient should be dried and kept at -20°C, shielded from light. Avoid repeated freeze-and-thaw cycles for stock solutions.
Conflicts
- strong oxidizing agents
- radical initiators
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has concluded that Poly(Methoxy PEG-9 Methacrylate), as a polymer, is safe for use in cosmetics under current practices and concentrations, provided the final product is formulated to be non-irritating. While methacrylate ester monomers generally carry a sensitizing potential (leading to recommendations to avoid skin contact in nail products), the polymeric form demonstrates good skin tolerance when properly formulated.
Your Skin
Skin Compatibility
Our Assessment
Verdict
METHOXY PEG-9 METHACRYLATE is a valuable ingredient for its dual benefits of enhancing skin hydration and creating a protective film, provided it is precisely formulated to be non-irritating for optimal skin compatibility across various skin types.
Related
Similar Ingredients
Finding similar ingredients…
References
Sources