Polyurethane-35
Synthetic Polymer
Polyurethane-35 is a synthetic polymer used to improve film formation, adhesion, and long wear in cosmetic formulations. While considered safe for topical use, it is a persistent synthetic polymer with limited biodegradability and potential environmental persistence.
Why Oh Daisey rates it this way
Polyurethane-35 is a synthetic polymer used to improve film formation, adhesion, and long wear in cosmetic formulations. While considered safe for topical use, it is a persistent synthetic polymer with limited biodegradability and potential environmental persistence.
What it does
Film Former; Binder; Hair Fixative
How to read this rating
This rating reflects the Oh Daisey ingredient standard and the evidence currently available for cosmetic use. Product safety can also depend on concentration, exposure route, formulation, manufacturing quality, and individual sensitivity.