CONCERN

Double Chin & Jawline Definition — Treatment Options in Seoul

Medically reviewed by Kim Yunseok, CEO / Representative Director · Reviewed by our editorial team

A double chin, medically referred to as submental fullness, is one of the most common concerns patients raise during consultations in Seoul. It can result from a combination of factors, including genetics, skin laxity, weight fluctuation, and the natural loss of collagen that occurs with age. Many patients searching for a double chin treatment in Seoul are looking for non-surgical ways to improve jawline definition without extended downtime. This page outlines the treatment options available at DERNA Clinic that may help address skin laxity and contour concerns in the lower face and neck area, along with what to realistically expect from each.

What causes the appearance of a double chin

Submental fullness can develop for several reasons. Some patients have excess subcutaneous fat in the chin and neck area regardless of overall body weight. Others notice the concern becoming more pronounced as skin loses elasticity and begins to sag along the jawline. Posture, bone structure, and muscle tone in the neck also play a role. Because the causes vary from person to person, the most suitable double chin treatment in Seoul depends on an individual assessment rather than a single standard approach.

Treatment options available at DERNA Clinic

DERNA Clinic offers energy-based skin tightening treatments that may help with jawline definition by targeting skin laxity in the lower face and neck. These are not fat-reduction procedures; rather, they work on the skin's supportive layers to encourage a firmer appearance over time.

Thermage FLX

Thermage FLX is a radiofrequency treatment delivered using the Solta Thermage FLX device. It is designed to stimulate collagen in the deeper layers of the skin, which may gradually improve elasticity and reduce the appearance of fine wrinkles. It is available in 300, 600, and 900 shot options, allowing treatment intensity to be adjusted according to the area and the patient's goals.

Eye Thermage FLX

This is a variation of the Thermage FLX treatment adapted specifically for the delicate skin around the eyes, offered in 225 or 450 shot options. While it is not targeted at the jawline directly, some patients combine it with facial treatments as part of a broader approach to overall facial rejuvenation.

Ultherapy Prime

Ultherapy Prime is an ultrasound-based lifting treatment that visualizes the skin layers in real time during the session and delivers energy to the SMAS, or fascia, layer beneath the skin. It is available in 300 and 600 shot options, with a 200-shot option for the eye area. Because it targets a deeper structural layer, it is often considered by patients interested in jawline and lower-face lifting.

Who these treatments suit

These treatments may be appropriate for adults who have mild to moderate skin laxity along the jawline or neck and who are looking for a non-surgical option. Patients who are already close to their target weight but are bothered by loose or less defined skin in the chin and jaw area are often the best candidates. Because facial anatomy and skin quality vary widely, a consultation with one of the clinic's doctors is used to determine which treatment, or combination, is reasonable for a given patient. Dr. Ko Bumjun, listed as a nose and face contour specialist at the clinic, is one of the physicians involved in facial contour consultations.

Who should avoid these treatments

Energy-based skin tightening treatments are generally not recommended for pregnant patients, individuals with active skin infections or severe acne in the treatment area, or those with certain implanted electronic devices such as pacemakers, without prior medical clearance. Patients with unrealistic expectations of dramatic or permanent change should also discuss this openly during consultation, since results vary from person to person and typically involve gradual improvement rather than an immediate, dramatic transformation. A thorough medical history review during consultation helps identify anyone for whom these treatments may not be suitable.

How the session goes

Sessions typically begin with a cleansing of the treatment area, followed by application of a numbing or cooling agent depending on the device and patient comfort. During Thermage FLX or Eye Thermage FLX, the device is passed methodically over the treatment area, delivering controlled radiofrequency energy in a grid-like pattern. Ultherapy Prime uses ultrasound imaging to allow the practitioner to see the tissue layers before delivering energy to the fascia layer. Most patients describe sensations of warmth, tingling, or brief discomfort during treatment, and the overall session length depends on the shot count selected.

Downtime and recovery

One of the appeals of these treatments for patients considering a double chin treatment in Seoul during a shorter visit is the limited downtime. Mild redness or warmth in the treated area is common immediately afterward and usually resolves within a few hours to a day. Some patients report slight swelling or tenderness for a short period. Most people are able to resume normal daily activities the same day, though makeup application and sun exposure guidance should be discussed with the treating doctor. Visible improvement is generally gradual, developing over weeks to months as collagen remodeling continues, and results differ between individuals.

Pricing

Listed prices reflect the treatments as offered at DERNA Clinic. Consultation fees and VAT may vary and should be confirmed directly with the clinic before booking.

TreatmentPrice (KRW)
Thermage FLX1,990,000
Eye Thermage FLX1,290,000
Ultherapy Prime1,450,000

Safety considerations

As with any energy-based skin treatment, outcomes and side effects can vary depending on skin type, age, and the settings used. Temporary redness, swelling, or mild bruising are the most commonly reported effects. Rare complications such as burns, uneven results, or prolonged discomfort are possible with any radiofrequency or ultrasound device and should be discussed during the pre-treatment consultation. Patients are encouraged to disclose their full medical history, including any prior facial procedures, medications, and allergies, so the treating doctor can assess suitability and adjust the treatment plan accordingly.

Frequently asked questions

Can these treatments remove fat from under the chin?

Thermage FLX, Eye Thermage FLX, and Ultherapy Prime primarily work on skin tightening and collagen stimulation rather than fat removal, so they are better suited to skin laxity concerns than to significant excess fat under the chin.

How many sessions are typically needed?

Many patients see gradual improvement after a single session, but the appropriate number of sessions depends on individual skin condition and goals, and this should be discussed with the treating doctor during consultation.

Is the procedure painful?

Most patients experience warmth, tingling, or mild discomfort during treatment, which is generally manageable with numbing or cooling measures, though sensitivity varies between individuals.

How soon will I see results?

Because these treatments work by stimulating collagen over time, visible changes usually develop gradually over several weeks to a few months rather than immediately after the session.

Are the results permanent?

Results are not permanent, since skin continues to age naturally after treatment, and maintenance sessions may be considered depending on individual response and lifestyle factors.

General information for international patients. Not medical advice. Individual results vary; consult a qualified physician.

Related