33665 A randomized, evaluator-blinded study to evaluate facial harmony and subject satisfaction after treatment with HADEF using a stepwise treatment approach

Abstract

Purpose: This study evaluated the impact of different treatment approaches on the outcome of lower face treatment with a flexible hyaluronic acid filler, HADEF. The chin, nasolabial folds (NLFs) and marionette lines (MLs), all approved indications, were treated stepwise to compare top-down versus down-up treatment.