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be sonatural, Face masks, read from the back

PVM/MA Copolymer

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No meaningful concern for most people; irritation is possible but rare.

Also written as: Polyvinyl Methyl Ether/Maleic Anhydride Copolymer · Gantrez

What it is

PVM/MA copolymer is made from vinyl methyl ether and maleic anhydride and forms a strong, flexible film as water evaporates. In face masks it is used in peel-off formulas and to hold pigments, sunscreens or actives in place on skin; the same polymer family is used in denture adhesives and toothpastes, which is why its safety profile is well documented.

What it does well

  • Forms a continuous film so a peel-off mask lifts off in one piece

    Film strength and adhesion are the polymer's defining properties; without a film-former, a peel-off mask simply flakes.

    Strong evidence

Worth knowing

  • Peel-off use can tug at skin and fine hairs

    The discomfort of a peel-off mask comes from mechanically removing the film, not from the polymer being irritating in itself. Removing it too vigorously can leave skin transiently red.

    Matters most toPeople with sensitive or reactive skin, or with visible facial hair.

Where the EU stands

No specific restriction

Not restricted for cosmetic use in the EU; it appears in no Annex of the Cosmetics Regulation.

Masks that contain PVM/MA Copolymer