Title: Rheological Properties of Hyaluronic Acid Fillers for Lip Volumization
Authors: Patricia Miranda Sousa Nogueira, et al.
Published: Aesthetic Plastic Surgery, August 2025
Keywords: Dermal filler, Hyaluronic acid, Volumization
Hyaluronic acid (HA) is widely used for facial rejuvenation and soft tissue volumization, with lip augmentation being one of its primary applications. The rheological properties of HA fillers are essential to ensure the efficacy and safety of procedures, directly influencing the aesthetic outcome and material longevity. This study aims to evaluate the rheological properties of three hyaluronic acid-based fillers indicated for lip volumization: Belotero Intense (Merz), Kysse (Galderma), and Volift (Allergan). Twenty-four syringes of fillers were analyzed, with 8 samples from each brand. The rheological properties investigated included storage modulus (G’), loss…
