Efficacy and Durability of Two Hyaluronic Acid-Based Fillers in the Correction of Nasolabial Folds: Results of a Prospective, Randomized, Double-Blind, Actively Controlled Clinical Pilot Study

Abstract

The effect after injection of mono-HA and bi-HA is generally comparable, although there was a trend in favor of mono-HA. Materials and funding for this study were provided by Teoxane, Geneva, Switzerland.