Thermage FLX in Myeongdong Seoul

Monopolar Radiofrequency and Volumetric Deep Heating

Thermage FLX utilizes monopolar radiofrequency (RF) energy delivered through a 3.0 cm2 treatment tip to create volumetric heating in the deep dermis and subdermal tissue layers at depths of 1.5-2.4 cm. The monopolar configuration generates a broad, uniform heating pattern that reaches the fibrous septae, where collagen fibers are most densely concentrated. When tissue temperature reaches 65-75 degrees Celsius, existing collagen fibrils undergo immediate contraction, producing an instant tightening effect. This initial contraction is followed by a wound-healing cascade that stimulates fibroblasts to produce new type I and type III collagen over the subsequent 3-6 months. The AccuREP technology in the FLX system measures tissue impedance 1,000 times per second and adjusts energy output in real time, ensuring optimal heating regardless of tissue density variations across different facial zones.

Clinical Evidence for Thermage FLX Efficacy

Multiple peer-reviewed studies confirm the efficacy of monopolar radiofrequency for skin tightening. Alam et al. (2018) conducted a randomized, sham-controlled trial of 35 subjects receiving monopolar RF treatment for facial and neck skin laxity, demonstrating statistically significant improvement in skin laxity at 6 months post-treatment as assessed by blinded evaluators. The study reported a 92% responder rate with quantifiable tightening measurements. Thermage FLX at RE:BERRY Myeongdong delivers consistent results across diverse Asian skin types, which respond particularly well to RF energy due to higher dermal collagen density.

Collagen Remodeling Cascade and Long-Term Outcomes

The biological mechanism underlying Thermage FLX involves a three-phase collagen remodeling cascade. Phase 1 (immediate to 1 week) involves heat-induced collagen denaturation and contraction. Phase 2 (weeks 1-12) triggers fibroblast activation and new collagen synthesis, predominantly type III collagen. Phase 3 (months 3-6) features type III to type I collagen conversion, producing mature, dense collagen with superior tensile strength. Zelickson et al. (2004) used electron microscopy to document this remodeling process, confirming significant increases in dermal collagen density at 3 and 6 months following a single monopolar RF session. At RE:BERRY Myeongdong, patients typically combine Thermage FLX with Revinas microcurrent therapy to amplify the collagen synthesis cascade.

Safety Profile of Monopolar RF Technology

Monopolar radiofrequency has been used in aesthetic medicine for over 20 years with an excellent safety profile. The Thermage FLX system incorporates multiple safety features including the cryogen spray cooling system that protects the epidermis while allowing deep dermal heating, and the AccuREP impedance monitoring that prevents excessive energy delivery. Dover et al. (2007) reported in a multi-center study of 5,700 treatments that the adverse event rate was below 0.4%, with effects limited to transient erythema and edema resolving within 24-72 hours. Thermage FLX is safe for Fitzpatrick skin types I-VI, making it appropriate for the diverse international patient population at RE:BERRY Myeongdong.

Alam M et al. JAMA Dermatol. 2018;154(3):330-338. doi:10.1001/jamadermatol.2017.5903 | Zelickson BD et al. Arch Dermatol. 2004;140(2):204-209. doi:10.1001/archderm.140.2.204 | Dover JS et al. Aesthetic Surg J. 2007;27(6):622-627. doi:10.1016/j.asj.2007.09.005