Double Chin & Jawline Definition — Treatment Options in Seoul
A double chin and a softened jawline are among the most common aesthetic concerns for patients visiting clinics in Seoul. Submental fullness can develop from genetics, weight fluctuation, posture, or simply the natural loss of skin elasticity that comes with age. For visitors researching a double chin treatment seoul clinics offer, it helps to understand what non-surgical options actually do, how they differ, and what a realistic outcome looks like before booking a consultation.
Understanding double chin and jawline concerns
The area under the chin and along the jawline is supported by skin, fat, and underlying muscle and fascia. When this support weakens or when fat accumulates locally, the jawline can appear less defined and a fuller profile can develop under the chin. Some patients notice this gradually over years; others see it appear more suddenly after weight change. Because the causes vary, the right approach also varies from person to person, and a single treatment will not address every case in the same way.
Treatment options relevant to this concern
At DERNA Clinic, two energy-based technologies are commonly discussed for skin tightening and lifting around the lower face and jawline: Thermage FLX and Ultherapy Prime. Both are non-surgical devices, but they work through different mechanisms and are often selected based on the degree of skin laxity and the patient's goals.
Thermage FLX is a radiofrequency treatment that heats the deeper layers of the skin to stimulate collagen renewal, which can gradually improve skin firmness and reduce the appearance of fine wrinkles. It is offered in 300, 600, and 900 shot protocols, and there is a dedicated Eye Thermage FLX option for the periorbital area, available in 225 or 450 shots.
Ultherapy Prime uses focused ultrasound and real-time visualization of skin layers to target the SMAS layer, the fascia that supports facial tissue from beneath. It is offered in 300 and 600 shot protocols, with a 200-shot option specifically for the eye area. Because it works on a deeper structural layer, some patients consider it when they are looking for a lifting effect along the jaw and cheek rather than surface-level tightening alone.
Who it suits
These treatments tend to be considered by patients with mild to moderate skin laxity who are not seeking surgery, and who want a gradual improvement in jawline definition rather than an immediate dramatic change. They may also suit patients who have some submental fullness related to skin quality rather than a large volume of fat, since neither treatment is a fat-reduction procedure. Individual results differ depending on skin thickness, age, and the amount of laxity present, so what works well for one patient may produce a more modest result in another.
Who should avoid it
Energy-based skin treatments are generally not recommended for patients who are pregnant, have active skin infections or severe acne in the treatment area, have certain implanted electronic devices, or have a history of keloid scarring that a doctor considers relevant. Patients with significant fat-related fullness rather than laxity may find that these treatments alone do not meet their goals, and a doctor may suggest a different approach or a combination of treatments. A consultation with one of the clinic's doctors is the appropriate way to confirm suitability, since medical history and skin examination both factor into this decision.
How the session goes
Both treatments are typically performed in an outpatient setting after a numbing cream or topical anesthetic is applied to reduce discomfort. The practitioner then passes the device systematically over the treatment area — the jawline, chin, or a combination — delivering radiofrequency or ultrasound energy in a set number of shots according to the chosen protocol. Patients commonly describe sensations of warmth, tingling, or brief discomfort during the pulses. Session length depends on the shot count selected and the area treated, and most appointments are completed within a single visit at the clinic.
Downtime and recovery
One of the appeals of these treatments is limited downtime. Mild redness, warmth, or slight swelling in the treated area is common immediately afterward and usually settles within a few hours to a day. Some patients return to normal activities the same day, though sun exposure and strenuous activity are often advised against for a short period following treatment. Collagen-related changes from Thermage FLX and structural lifting from Ultherapy Prime develop gradually over weeks to months, rather than appearing instantly, and more than one session may be needed to reach a patient's desired outcome. Results are not permanent and typically require maintenance over time, as with most non-surgical skin tightening approaches.
Pricing
The prices below reflect the treatments as listed by the clinic. VAT and any consultation fee may apply separately and can vary depending on the individual treatment plan.
| Treatment | Price (KRW) |
|---|---|
| Thermage FLX | 1,990,000 |
| Eye Thermage FLX | 1,290,000 |
| Ultherapy Prime | 1,450,000 |
Safety
Any decision about a double chin treatment in Seoul should start with a medical consultation, since suitability depends on individual skin condition and health history. DERNA Clinic's medical team includes doctors with varied backgrounds; for example, Kim Yunseok, an orthopedic surgeon and the clinic's CEO, and Ko Bumjun, an otolaryngologist described as a nose and face contour specialist. Patients should discuss their goals, medical history, and expectations directly with the treating doctor before proceeding, and ask about the specific shot count and protocol recommended for their case. The clinic is located at B2F, 17 Seocho-daero 77-gil, Seocho-gu, Seoul, and is open daily from 10:00 to 22:00, with a short staff training period on Wednesday mornings between 10:00 and 11:00 when patients are not seen.
Frequently asked questions
How many sessions are usually needed for jawline improvement?
This varies by patient and by treatment, but many people consider a series of sessions spaced over weeks or months rather than expecting full results from a single visit; the clinic's doctors can suggest a plan after an in-person assessment.
Is Thermage FLX or Ultherapy Prime better for a double chin?
Neither is universally better; Thermage FLX focuses on collagen stimulation in the skin, while Ultherapy Prime targets the deeper SMAS layer, so the right choice depends on the degree and type of laxity a doctor identifies during consultation.
Will these treatments remove fat under the chin?
These are skin-tightening and lifting treatments, not fat-reduction procedures, so patients with significant submental fat may need a different discussion with their doctor about other options.
How much discomfort should I expect during the procedure?
Most patients describe warmth or mild tingling during treatment, and numbing cream is generally applied beforehand; sensation tolerance differs between individuals.
Can international patients book a consultation in English?
Some doctors at the clinic, including Ko Bumjun, Kwon Joohyun, and Park Seorin, are noted as English fluent or conversational, and patients can contact the clinic in advance by phone or email to confirm appointment details.