Keeping a Snatched Jawline in Seoul: Sophie's Maintenance Visit, and How I Plan Repeat Lifting

“Keep” is the word in Sophie's caption that caught my attention. I'm Dr. Hyunji Kim, director of Delphic Clinic by Sinnonhyeon Station in Gangnam; I trained at Korea University Medical Center and I see our international patients, visitors and residents alike, myself. Many of them, especially those living in Korea, are no longer asking “will this work?” but “how do I hold on to it, and how often is too often?” This page answers that maintenance question using Sophie's plan: what was done, what it costs, how I space repeat sessions, and when I tell someone to take a break.

Medically reviewed · Dr. Hyunji Kim · October 8, 2026

Keeping a jawline is not the same as building one

When someone comes in to create definition, I'm usually working against fullness that has been there for years. A maintenance visit is lighter: the line already exists, and the goal is to stop gradual softening from creeping back.

That changes how I dose. I look at what has actually returned since the last visit rather than repeating the same plan on autopilot. Sometimes all three treatments are still justified; sometimes one is enough.

What each part of the plan is holding in place

• ONDA 40kJ: Coolwaves™ microwaves heat the fat layer while the surface stays cool, targeting the fullness that blurs the jaw.
• Titanium 40kJ: three laser wavelengths warm the dermis to keep skin firm, so the line doesn't soften from loosening skin.
• Facial fat-dissolving injection: a 3cc shot into one small pocket that the devices don't address as precisely.

I've written a longer piece on fat-dissolving for slimming a face and a first-timer guide to ONDA, if you're weighing the parts separately.

How often is reasonable — and when I say wait

Titanium is typically repeated at intervals of 2–8 weeks when someone is building results, and ONDA is usually planned as 1–3 sessions depending on the area, with periodic maintenance afterwards. Those are ranges, not a subscription.

If the jaw already looks the way you want, I will tell you to wait. Over-treating a slim face can leave it looking hollow, which is harder to fix than mild fullness. Weight stability matters more than any device for keeping the line.

The cost of a maintenance visit

Sophie's caption lists ₩640,000, which matches our first-visit menu for these three lines. Korean and international patients pay the same, with no foreigner surcharge.

One thing residents should know: first-visit prices apply once. Later sessions follow the regular menu, so it's worth planning maintenance with the full price in mind. My guide to building an ONDA budget explains the numbers in more detail.

For residents: fitting it around a working week

1. 1

   Book around your calendar

   Message us on WhatsApp with a photo and the days you're free. Same-day treatment after the consultation is possible.

2. 2

   Evening or lunch break

   Most people go straight back to work. Expect possible redness or warmth for a day or two after Titanium.

3. 3

   Track with photos

   Take a photo in the same light every few weeks. It tells us far more about timing than memory does.

4. 4

   Find us

   We're right by Exit 3 of Sinnonhyeon Station, with English and Chinese interpreters on site.