Shurink vs Thermage in Korea: What Each Does and What It Costs (2026)

The 4.5 mm cartridge reaches the SMAS — the layer a surgeon physically pulls in a facelift. That is why Shurink is sold as a lifting treatment rather than a skin-quality treatment.

One naming trap worth knowing: outside Korea, the same Classys platform is sold as Ultraformer. A study or a marketing claim labelled “Ultraformer” describes the machine a Seoul clinic will call Shurink.

Thermage FLX is a monopolar radiofrequency device from Solta Medical. It holds US FDA 510(k) clearance K170758, granted on 22 September 2017, for the non-invasive treatment of wrinkles and rhytids, including the periorbital area — the upper and lower eyelids. It runs at 6.78 MHz and heats a volume of dermis while a cooling tip protects the epidermis.

First, make sure you are comparing the same treatment unit.

Official Thermage information says a treatment tip is designed for a specific number of pulses and can no longer be used after those pulses are delivered. Korean clinics commonly advertise Shurink in shot counts such as 100, 300 or 600. The device, area, pulse or shot count, clinician, included services and VAT all affect the quoted price.

This has a practical consequence: an unusually cheap Thermage listing is a question, not enough evidence of a bargain. Ask the clinic to identify the exact system, treatment area, tip and pulse count, show how it verifies the tip, and provide the VAT-inclusive total. Price alone does not prove whether a device or consumable is genuine.

This is the part most comparisons get wrong, and it is worth reading carefully.

In April 2025, Aesthetic Surgery Journal published a systematic review of focused ultrasound for skin tightening and body contouring — 45 studies screened from more than 3,800 articles published between January 2010 and October 2024. It reported skin-laxity improvements ranging from 18% to 30%, mostly in the lower face, neck and periorbital region, with transient adverse effects in fewer than 5% of patients. The review graded its own level of evidence as 3, and its authors noted that protocol standardisation remains unresolved.

But read which devices it covered: Ultherapy, Ultherapy Prime, Sofwave and Ultraformer. Ultraformer is Shurink, so part of that evidence applies to Shurink directly. Ultherapy is a different manufacturer's device, and its published results do not transfer.

The same caution applies to the study Korean clinics often quote when selling HIFU and radiofrequency together. That was a 36-patient retrospective published in Medical Lasers(2023;12(4)), and it used devices called 10thera and 10therma, made by Tentech — not Shurink, and not Thermage. Patient satisfaction was higher in the combined group (7.62 vs 6.70 out of 10, p = 0.0335), but that finding belongs to those machines.

The habit worth building: a study on one focused-ultrasound device is not a study on all of them. If a clinic quotes a result, ask which device that result came from. It is a fair question and a revealing one.

Individual response depends on age, skin thickness, how much laxity is already present, and the settings the operator chooses. Only a licensed doctor examining you can say what applies to your face.

No. This is the change most English-language guides have not caught up with.

Korea's VAT refund special provision for foreign patients receiving cosmetic procedures expired on 31 December 2025. A bill to restore it through the end of 2027 was referred to a National Assembly planning-and-finance subcommittee on 29 July 2026, and a second bill was introduced in mid-August 2026. As of 5 September 2026, neither has passed.

Some official-looking pages still describe the refund as a live service. Treat any refund promise as something to verify against current law, and budget as though the refund does not exist.