Ultherapy vs Thermage: Which Is Better for Skin Lifting?
Quick answer: Ultherapy is better for lifting sagging skin and a heavier jawline, because its micro-focused ultrasound reaches the deep SMAS layer. Thermage FLX is better for tightening thinner, crepey skin, smoothing texture and treating the eye area with radiofrequency. In Seoul, some people combine both, and a doctor decides which suits your face.
If you are comparing Ultherapy vs Thermage before a trip to Seoul, you are choosing between the two best-known non-surgical lifting devices in Korea. They are often mentioned together, but they work at different depths and solve slightly different problems. This guide explains the difference in plain terms so you can walk into your consultation with clear questions.
What is the difference between Ultherapy and Thermage?
Ultherapy is a micro-focused ultrasound treatment that uses real-time imaging to deliver heat points into the deeper layers of the face, including the SMAS, the muscle-fascia layer that surgeons tighten in a facelift. Ultherapy Prime is the newer system. Treatment is counted in lines (often called shots in Korea).
Thermage FLX is a monopolar radiofrequency treatment that heats a broader, shallower volume of the dermis to tighten collagen and improve texture. It is counted in shots, typically 300, 600 or 900, and a dedicated tip can treat the upper and lower eyelid area. FLX is the current generation of Thermage.
| Factor | Ultherapy | Thermage FLX |
|---|---|---|
| Technology | Micro-focused ultrasound with imaging | Monopolar radiofrequency |
| Depth | Deep, down to the SMAS layer | Dermis, broad and more superficial |
| Best for | Sagging, jowls, jawline, brow lift | Laxity, texture, fine lines, eyes |
| Unit | Lines (100, 300, 600) | Shots (300, 600, 900) |
| Results | Build over 2–3 months | Build over 2–6 months |
| Typical longevity | Often about a year or more | Often about 1–2 years |
| Downtime | 0–1 day | 0–1 day |
In short, think of Ultherapy in Hongdae as a deep lift and Thermage FLX in Hongdae as a surface-to-mid-layer tightener. For a three-way view that adds radiofrequency contouring, see our guide Thermage vs Ultherapy vs InMode.
Is Ultherapy or Thermage better for sagging skin and jowls?
For visible sagging, Ultherapy is usually the stronger choice. Because it targets the SMAS, it can lift tissue along the jawline, under the chin and at the brow, which is where early jowls and a heavier lower face show up.
Thermage FLX can still help a softening jawline, but its effect is more about firming and smoothing the skin envelope than repositioning deeper tissue. If your main goal is a sharper jaw contour, read Ultherapy vs Thermage for jawline lifting for a closer look.
When neither device is enough
Energy-based lifting has limits. If sagging is advanced, a doctor may suggest thread lifting for a more immediate mechanical lift, or dermal fillers to restore lost volume that makes skin look like it is drooping.
Which is better for fine lines, texture and the eye area?
Thermage FLX tends to win for skin quality. Radiofrequency heats a wide area evenly, which can tighten crepey skin, soften fine lines and refine texture across the cheeks and neck. The eye tip treats the eyelids and crow’s feet area, something Ultherapy does not cover in the same way.
- Thinner skin, early laxity, texture concerns: Thermage FLX is often the first suggestion.
- Hooded upper lids or crepey under-eyes: Thermage eyes is a common add-on.
- Deeper wrinkles: devices help, but many people also need toxin or filler; see wrinkle removal in Seoul.
How much do Ultherapy and Thermage cost in Seoul?
The cost of Ultherapy vs Thermage in Seoul depends mostly on the number of lines or shots. The ranges below are approximate 2026 Seoul market prices per session, converted at about KRW 1,400 per US dollar. They are not the prices of any single clinic.
| Treatment | Typical Seoul range (KRW) | Approx. USD |
|---|---|---|
| Ultherapy 100 lines | 300,000–600,000 | US$210–430 |
| Ultherapy 300 lines | 800,000–1,800,000 | US$570–1,290 |
| Ultherapy 600 lines | 1,500,000–3,000,000 | US$1,070–2,140 |
| Thermage FLX 300 shots | 900,000–1,600,000 | US$640–1,140 |
| Thermage FLX 600 shots | 1,600,000–3,000,000 | US$1,140–2,140 |
| Thermage FLX 900 shots | 2,500,000–4,000,000 | US$1,790–2,860 |
| Thermage eyes (tip) | 500,000–1,000,000 | US$360–710 |
What moves the price:
- Number of lines or shots, and whether the face, neck or eyes are included
- Device generation, such as Ultherapy Prime versus the earlier system
- Genuine, sealed tips and cartridges opened in front of you
- Whether the doctor performs the treatment personally
- Packages or combinations, numbing and aftercare
- 10% VAT, which is usually added to cosmetic procedures
For line-by-line detail, see Ultherapy cost in Korea and Thermage FLX cost in Korea. For actual figures, check a clinic’s current price list.
Does Ultherapy or Thermage hurt more, and what is the downtime?
Both treatments create heat, so expect some discomfort. Ultherapy is often described as a deeper, sharper sensation, especially over bony areas such as the jawline. Thermage FLX delivers heat with cooling and vibration between pulses, which many people find more tolerable. Clinics commonly apply numbing cream for either.
Downtime is minimal for both, typically 0–1 day. You may notice mild redness, swelling or tenderness for a few hours to a few days, and you can usually return to sightseeing the same day. Flying the next day is generally fine, but leave a buffer before important events.
Who should be cautious
Tell the doctor if you are pregnant or breastfeeding, have metal implants or a pacemaker, active skin infection or recent fillers in the area. Use sunscreen daily afterward, and remember that results vary from person to person.
Can you combine Ultherapy and Thermage?
Yes. Because they work at different depths, some doctors combine Ultherapy for the lower face and jawline with Thermage FLX for the cheeks, skin texture and eyes, either on the same day or weeks apart. This layered approach is popular in Korea for overall anti-aging treatment.
Other options a doctor may discuss alongside or instead:
- InMode Forma and FX for radiofrequency tightening and small fat pockets such as the double chin.
- Shurink Universe, a more affordable Korean HIFU often repeated more frequently.
- Rejuran Healer to improve skin quality after lifting.
The right number of lines, shots and sessions should always be set by a doctor after examining your skin thickness, fat distribution and goals.
Planning your visit to a skin clinic in Hongdae, Seoul
Hongdae is an easy base for a lifting appointment. Hongik Univ. Station connects Line 2, the Gyeongui–Jungang Line and the AREX Airport Railroad, with direct trains to Incheon and Gimpo airports, so it is simple to fit a session around a flight.
- Language: ask whether English- or Japanese-speaking staff are available.
- Booking: many clinics take consultations by WhatsApp or KakaoTalk. Send clear front and side photos and your travel dates.
- Details to confirm: who performs the treatment, the exact number of lines or shots, and whether VAT is included.
- Timing: leave a buffer before flights or important events.
Read more about Ultherapy in Seoul and Thermage FLX in Seoul, and compare figures on the current Hongdae clinic price list before you book.
Frequently asked questions
Which lasts longer, Ultherapy or Thermage?
Thermage FLX results often last about 1–2 years, while Ultherapy results often last about a year or more. Both build gradually as new collagen forms, with Ultherapy peaking around 2–3 months and Thermage FLX over 2–6 months. Longevity depends on your age, skin quality, sun exposure and the number of lines or shots used, so results vary.
How many sessions of Ultherapy or Thermage do I need?
Most people need just one session of either treatment, which is why both are popular with foreigners visiting Seoul on short trips. Some repeat Ultherapy roughly once a year and Thermage FLX every one to two years for maintenance. A doctor will recommend the number of lines or shots for your face at consultation rather than a fixed package.
Is Ultherapy or Thermage better in your 30s?
In your 30s, Thermage FLX is often chosen to firm skin and improve texture before sagging becomes obvious, while Ultherapy suits people who already see early jowls or a heavier jawline. Age matters less than your skin thickness and structure. A doctor can assess which device, or which combination, makes sense for your face and budget.
Can I fly home the day after Ultherapy or Thermage?
Usually, yes. Both treatments typically have 0–1 day of downtime, with mild redness, swelling or tenderness that settles quickly. Many visitors to Korea schedule a session a day or two before departure. If you are also getting fillers or other injectables, allow 2–3 days for swelling, and always leave a buffer before important events.
Can I get Ultherapy or Thermage in English in Hongdae?
Yes. Many clinics in Hongdae have English- and Japanese-speaking staff, and you can often consult in advance by WhatsApp or KakaoTalk. Hongik Univ. Station has AREX trains to Incheon and Gimpo airports. Confirm language support and check the current price list before booking your consultation.
Related guides
This guide is general information for international visitors, not medical advice. A doctor confirms suitability, dosage and number of sessions at consultation. Prices are approximate Seoul market ranges and change over time — always check the clinic's current price list. Last updated: October 2026.
