摘要

Objectives: 1. Understand the principles and characteristics of dual-molecular PDLLA biostimulators. 2. Learn a personalized injection technique using small and large PDLLA for full-face rejuvenation and lifting. 3. Apply targeted PDLLA injection mapping to address volume loss, skin laxity, and texture refinement. Introduction: - This presentation proposes a structured, dual-molecular PDLLA injection protocol as a novel alternative to conventional fillers for full-face rejuvenation. By integrating small and large particle types across anatomical zones, the technique provides natural volumization, contour lifting, and skin refinement. With growing concern over filler-related complications, this method represents a forward-looking, safe, and reproducible injectable strategy in aesthetic medicine. Materials / method: - Small-particle PDLLA was reconstituted with 5 cc normal saline and 1 cc Xylocaine (no adrenaline), injected into infraorbital and medial midface using fanning and bolus techniques in sub-dermal plane. Large-particle PDLLA was mixed with 7 cc normal saline and 1 cc Xylocaine, injected via fanning technique into temporal, zygomatic arch, preauricular, and jawline areas for volumization and lifting. Both used 25G cannula or 30G needle depending on area. Results: - Visible facial lifting observed 1 month post-treatment with dual-molecular PDLLA. Brow elevation, jawline contour, and infraorbital hollowness improved. Skin showed enhanced firmness, refined texture, and reduced pore size. Rejuvenation effects were seen across treated areas. No major adverse events reported. Technique highlights the synergy of small and large PDLLA in layered facial biostimulation. Conclusion: - This study supports the efficacy of dual-molecular PDLLA injection for full-face rejuvenation. Objective improvements were observed in brow elevation, jawline definition, pore size reduction, and skin texture at 1-month follow-up. No significant adverse events were reported. The protocol demonstrates a safe, anatomy-guided, and customizable approach with high patient satisfaction and minimal downtime.