Came to REWIND to get my facial treatment and i'm absolutely obsessed about it💞 the doctor is so kind and is an expert! Everyone must visit!
Non-Surgical · Bipolar Radiofrequency · Comparison
One handpiece for fat, one for skin, and a diagnosis to choose between them
Gangnam, Seoul | Board-certified plastic surgeon, Dr. Jonghwan Choi
KHIDI-registered for international patients · Apgujeong Rewind
FX or Forma
The short answer
FX and Forma are two handpieces on the same InMode radiofrequency platform, and Rewind's device record gives them separate jobs. FX, which the clinic's Korean menu also calls Mini FX, is directed at fat cells beneath the chin and in the cheeks, to reduce the fat stored there. Forma is directed at the skin, where heat promotes collagen and elastin so the surface firms. Neither uses needles. Both pass current between electrodes held against the skin, the arrangement known as bipolar.
Source: Rewind's own device documentation. Session length, comfort measures and session counts are not published for either handpiece and are confirmed at consultation.
Put plainly, choosing between them means deciding what is making the lower face look heavy. If it is a pad of fat, FX is the handpiece the record points to. If it is skin that has lost its spring, Forma is. If it is both, the two can be run in one appointment, and Rewind lists that pairing as a line of its own.
What neither handpiece does is lift tissue that has descended, or reach fat lying deep beneath the neck muscle. Those findings change the conversation entirely, and the examination exists to catch them before a handpiece is chosen.
Side by side
The clinic's record and price sheet are enough to set the two handpieces next to each other. Where the record is silent, the card says so.
Mechanism
Both handpieces send radiofrequency current from one electrode to another across a small patch of tissue. What differs is the tissue each is designed to heat, and so the change each one is meant to produce.
Current stays between the electrodes on the handpiece, so no return pad is needed on the body and nothing pierces the skin. It is the basis for the same-day return to ordinary activity that the clinic's record describes.
The record describes FX as destroying fat cells beneath the chin and in the cheeks. Laboratory work on selectively heating subcutaneous fat with radiofrequency has shown fat cells to be vulnerable to sustained heat, the principle a fat-directed handpiece relies on.
Forma is described as promoting collagen and elastin. Published work on bipolar radiofrequency in the dermis has recorded new collagen and new elastin forming in treated skin, the tissue response a skin-directed handpiece aims for.
Fat reduction and firming answer two halves of one complaint: a lower face that is both fuller and looser than it was. Running both in one visit treats the two findings together, and the clinic lists that visit as a single item.

The deciding step
Patients often arrive asking for one InMode handpiece by name. The examination sometimes confirms that choice, sometimes swaps it, and sometimes rules out both.
Fat close to the surface can be gathered between the fingers and moves with the skin. That is the finding the FX handpiece suits, and the doctor checks for it under the chin and along the lower cheek.
Skin that creases easily and is slow to settle back reads as laxity. Forma's heat is aimed at that layer, so in a face with little fat it is usually the handpiece under discussion.
Fat beneath the neck muscle and tissue that has slid below the jaw line are out of reach of both handpieces. Dr. Choi, a board-certified plastic surgeon, sets out the surgical options in those cases and leaves the decision with you.
Visit

Fig. 04 · Reception on the clinic floor

Fig. 05 · Where the handpiece is chosen
The examination and the session both take place at Rewind, on the fourth and fifth floors of the Richro Building in Apgujeong, Gangnam. Visits are by appointment on Monday, Tuesday, Wednesday and Friday from 10:00 to 19:00 and on Saturday from 10:00 to 16:00; Thursday and Sunday are closed.
Tell the team which handpiece you have read about, and expect the plan to be settled only once the face has been examined. Session length and comfort measures are not published and can be confirmed when booking.
Pricing
Each InMode handpiece has its own face line, and the pairing has a third. Knowing which of the three your plan uses answers most of the price question.
List rates before value-added tax. On the current list the combined line equals FX and Forma added together, so pairing them is a clinical choice with no price incentive either way. Body FX is a separate line quoted per area, and the number of sessions is set after examination.
Fit
Aftercare
Rewind gives one set of InMode instructions whichever handpiece is used, so the choice between them does not change the days that follow.
Radiofrequency literature reports burns, blistering, prolonged redness, altered sensation and, occasionally, unwanted fat loss beneath the treated skin. An analysis of injuries in energy-device practice supports having the examining doctor set the plan. Declare earlier fillers, threads and device sessions before treatment.
At Rewind, one board-certified plastic surgeon carries every case — from the first consultation to the final follow-up. Because a face is a story, and a story deserves a single author.
Rewind,
Rewind's Doctor
Dr. Jonghwan Choi Medical Director
One surgeon, from the first
consultation to the last follow-up.
A board-certified plastic surgeon devoted to anti-aging lifting — with the precision and restraint built through years of craniofacial practice.
Questions
Google Reviews
Came to REWIND to get my facial treatment and i'm absolutely obsessed about it💞 the doctor is so kind and is an expert! Everyone must visit!
There are just way too many cosmetic clinics in Korea and I'm so happy I found Rewind Clinic in Gangnam. Dr. Choi was so kind and patient while explaining the different face-lifting options, from threads to mini-lifts to deep-plane lifts…
I found Rewind clinic through a Korean chat forum and many local clients highly recommended it. The clinic is brand new, featuring large, clean rooms and many private waiting areas so it doesn't give off that "factory" clinic vibe. All the…
Really nice environment. Doctor is easy to communicate and understands my visions. Waited two weeks to make a review and I confirm the results exceeded my expectations and I am super happy with it. Can't wait to come back!! :))
I received a thread lift at Rewind Plastic Surgery. The clinic was clean and the atmosphere was comfortable. The consultation was thorough, and I felt confident because they kindly explained everything tailored to my facial condition. They…
Reservation
Tell us what you are considering — we reply as soon as possible, in your language.
For international patients — interpreter-assisted, from your first message to your follow-up.
Scientific evidence
One paper tests selective heating of fat cells with a radiofrequency device, one records collagen and elastin changes after bipolar radiofrequency, one reviews radiofrequency for skin laxity, and one examines how injuries arise in energy-device practice. None studies the handpieces or the patients at Rewind.