Other ingredient
Polyurethane Film
A thin, flexible synthetic polymer film used as the outer backing layer of acne patches and wound dressings, providing a protective, occlusive barrier over the adhesive layer.
Also known as: pu film, polyurethane backing film
film-formingbinding-agent
Benefits
- ✓Provides transparent, flexible, waterproof backing for acne patches
- ✓Allows oxygen transmission while protecting the wound environment
Watch for
- ⚠Generally considered inert; no known skin sensitization at use concentrations
