Commentary on “Complications of Collagen Biostimulators in Brazil: Description of Products, Treatments, and Evolution of 55 Cases”

Abstract

Background: A recent study highlighted variability in complication rates among polylactic acid (PLA)-based collagen stimulator fillers, with notably high rate of complications linked to PLLA-Elleva. The study suggested that product-specific characteristics might have greater impact on outcomes than injection techniques. Methods/Results: Through a critical analysis of pertinent literature, this commentary explores how PLLA-Elleva's unique physicochemical properties, particularly its bimodal degradation process, may contribute to the increased nodule formation observed. Conclusion: Although PLLA-Elleva's degradation pattern does not inherently compromise safety, it introduces variability that requires careful attention to dosage, injection technique, and patient selection.