Aesthetic Chin Retrusion Enhancement With Non-animal Stabilized Hyaluronic Acid-High Density (NASHA-HD™) Filler

Chin projection is a critical component of lower face aesthetics, influencing facial balance, youthfulness, and sexual dimorphism.

This retrospective case series provides short-term, real-world observations on the use of Non-animal Stabilized Hyaluronic Acid - High Density (NASHA-HD™) injectable for chin augmentation as part of a combined lower-face hyaluronic acid (HA) filler treatment approach. Each patient received 1 mL of High-Animal Stabilized Hyaluronic Acid (HASHA™) administered as supraperiosteal boluses in the chin, distributed according to the patient's needs. For a comprehensive facial approach, complementary injections of HA fillers based on Optimal Balance Technology (OBT^™)and NASHA®technologies were performed in the mid and lower face to harmonize facial proportions and enhance overall contour.

Results demonstrated high patient satisfaction, natural aesthetic outcomes, a natural look on the chin, and a favorable safety profile with only mild and transient adverse events. Independent Global Aesthetic Improvement Scale (iGAIS)-physician assessment demonstrated global aesthetic improvement and enhanced facial proportionality in most patients. This holistic approach achieved satisfactory projection and contour enhancement using low product volumes.

This article underscores the importance of using high G' fillers for structural support, and flexible fillers for dynamic zones, particularly in the diverse population, which presents a wide range of facial morphologies requiring personalized aesthetic approaches.