Efficacy and Safety of OnabotulinumtoxinA for the Treatment of Platysma Prominence: A Randomized Phase 2 Dose-Ranging Study.

<h4>Background</h4>With aging, repetitive contraction of the platysma leads to an increase in platysma prominence (PP), characterized by the accentuation of vertical neck bands and blunting of the jawline contour.<h4>Methods</h4>This multicenter, double-blind, phase 2 study evaluated onabotulinumtox... View More