As interest in aging and rejuvenation continues to in- crease, various dermal fillers, lasers, light source technologies, and RF devices are now being developed4-8, with any number of combination treatments also reported3,9-12. In the present study, we evaluated the safety and efficacy of a combination regimen of HA filler and a new needle RF device. Owing to several key advantages, HA has become the most widely used filler worldwide. Specifically, HA rarely induces immunogenic reactions and is stable enough to be used in combination treatment regimens, as it has no species or tissue specificity13. Moreover, another advantage of HA is that it is easily degraded by hyaluronidase. The HA filler used in this study, Glytone 3, consists of 23 mg/ml HA in phosphate buffer with mannitol14, which acts as both an antioxidant and a moisturizer15.