Pilot Study on the Efficacy of a Dual‐Length Microneedle Radiofrequency Device With Microblade Design for Neck Rejuvenation

Background: Neck aging presents challenges in achieving satisfactory cosmetic outcomes, particularly horizontal wrinkles. Minimally invasive technologies like microneedle radiofrequency (RF) devices offer promise for neck rejuvenation. Aim: This study evaluates the efficacy and safety of the novel microblade RF device for nonsurgical neck rejuvenation. Methods: Twelve healthy Korean volunteers received two microblade RF treatment sessions spaced 4 weeks apart. Skin biophysical properties were measured at baseline, Week 4, and Week 12. Assessments included Horizontal Neck Wrinkle Severity (HNWS) scores, Global Aesthetic Improvement Scale (GAIS) scores, and safety outcomes. Results: Significant reductions in HNWS scores were observed over time ( p < 0.001), alongside improved GAIS scores. Skin hydration increased, transepidermal water loss decreased, and skin elasticity improved at weeks 4 and 12. Treatment‐related adverse effects were mild‐to‐moderate and transient, with no serious side effects reported. Conclusion: The microblade RF device demonstrates efficacy and safety for nonsurgical neck rejuvenation, with improvements in horizontal wrinkles and skin properties over time. These findings highlight its potential as a valuable tool in neck rejuvenation procedures.