What it is
Polyurethane-11 is a synthetic urethane-linked polymer classified as a cosmetic film former. As the product dries it forms a flexible, continuous film that helps deposit the formula evenly and improves the durability and feel of the applied layer. In sunscreens and tone-up or shimmer products it is used to help hold pigments and other ingredients in place in a smooth film.
Safety & warnings
Like other cosmetic polyurethane film formers, polyurethane-11 is a large, surface-acting polymer that is generally well tolerated and not a recognized fragrance allergen. Film-forming polymers of this type are not typically associated with comedogenicity at the levels used in cosmetics.
Origin & sourcing
Fully synthetic polymer made through urethane chemistry from polyols and isocyanate components.
Questions everyone asks
What does polyurethane-11 do in a product?
It acts as a film former, drying into a flexible film that helps the formula apply evenly and wear smoothly.
Is polyurethane-11 a plastic?
It is a synthetic polyurethane polymer used in small amounts to form a thin cosmetic film on the skin surface.