A Retrospective Case Series Reporting the Safety of a Polyvinyl Alcohol ( <scp>PVA</scp> ) Composite Filler for Facial Augmentation

In this retrospective cohort, the PVA-based composite filler demonstrated a low incidence of adverse events, with absence of documented late-onset complications in 279 patients. Descriptive observations of long-term efficacy are encouraging; further prospective, controlled studies are warranted to objectively substantiate its durability and performance.