Skin Clinic Korea · Gangnam, Seoul
Treatment Guide · HIFU LiftingUltherapy Korea:
How HIFU Lifting Works
Ultherapy uses microfocused ultrasound to heat small points in the deeper layers of the skin while leaving the surface intact. It is usually done as a single session, and any lift develops slowly as new collagen forms.
How many Ultherapy sessions are needed for visible lifting in Korea? Ultherapy is usually planned as a single session, and response varies. A 2025 meta-analysis of 42 studies found that about 89% of patients were rated as improved by investigators, but satisfaction was about 62% in studies that allowed a neutral answer. Results build gradually over two to three months as new collagen forms, with some patients returning for a touch-up around the one-year mark.
How HIFU
Technology Lifts Skin
High-intensity focused ultrasound, or HIFU, delivers energy to a precise depth beneath the skin’s surface, and the deepest standard Ultherapy setting is designed to reach the support layer (SMAS) that surgeons tighten in a facelift, without cutting the skin. The maker calls its version microfocused ultrasound; HIFU is the broader term, and several other HIFU brands are sold in Korea. That focused delivery is what distinguishes it from radiofrequency treatments like Thermage, which heat a broader, shallower area rather than targeting one specific depth.
Ultherapy vs.
Surgical Facelift
Treatment intensity and depth are adjusted based on where skin laxity is most pronounced, which is why a proper assessment matters more than a fixed, one-size treatment protocol.
| Good Fit If You… | What Happens |
|---|---|
| Have mild to moderate sagging and want to avoid surgery | Ultherapy lifts gradually using your own collagen response, without incisions |
| Have significant, advanced sagging | A surgical facelift typically achieves more dramatic correction than any energy-based device |
| Want no downtime and a quick return to normal activities | Ultherapy involves little to no recovery time compared to surgery’s multi-week healing |
| Have very thin skin or expect a surgical-level result | A consultation should set clear expectations about what non-surgical lifting can and can’t achieve |
How Many Sessions
You’ll Need
Most treatment plans involve one full session, with changes developing gradually over two to three months as collagen rebuilds. Not everyone sees a visible lift. A touch-up around a year later is common to extend the effect, though it isn’t strictly necessary for everyone.
Patients also dealing with dynamic wrinkles alongside sagging often look at Botox in Korea as a complementary option, and the broader skin tightening guide compares Ultherapy against other non-surgical technologies.
Ultherapy timeline
Side Effects
and Who Should Not Have It
The Ulthera instructions for use list three contraindications: open wounds or lesions in the treatment area, severe or cystic acne in the area, and active implants such as pacemakers or defibrillators, or metal implants in the area. The device has not been evaluated in pregnant or breastfeeding women, or in people with bleeding disorders, autoimmune disease, diabetes, epilepsy or Bell’s palsy. Treatment directly over the eyes, the thyroid, dermal fillers or mechanical implants is not recommended.
Expected short-term effects are redness, swelling, tingling and tenderness, sometimes with bruising. Less often, inflammation of a nerve causes temporary numbness or muscle weakness, which the instructions say typically resolves in two to six weeks. Burns and scarring can occur if the technique is wrong, which is one reason to ask who will operate the device.
Frequently Asked
Questions
- Is Ultherapy painful?
- Most patients feel heat and sharp or aching pulses as the energy is delivered, particularly over bonier areas like the jaw. A 2025 meta-analysis put average pain at about 5 out of 10. Pain relief beforehand and a practitioner who adjusts pacing can make the session more comfortable.
- Who is a good candidate for Ultherapy?
- People with mild to moderate skin laxity are the usual candidates, because the result depends on the body producing new collagen. Heavy sagging usually needs surgery for a visible change. A consultation can assess whether your degree of laxity fits this profile.
- Can Ultherapy be combined with other treatments?
- It’s often paired with injectables like Botox or filler to address wrinkles and volume loss alongside the lifting effect. Your practitioner should sequence these appropriately rather than doing everything in one visit.
- What determines the cost of Ultherapy in Korea?
- Cost depends on how much of the face or neck is treated and the specific device settings used, so pricing varies clinic to clinic. Ask for a written quote covering the exact areas you want addressed.
- How long do Ultherapy results last?
- How long the effect lasts varies from person to person, because aging continues after treatment. Clinics often discuss a repeat session after about a year, but there is no fixed schedule.
Sources &
Verification Notes
Where we found a real, checkable source for a claim above, we’ve linked it here. Where we couldn’t, or found the approved indication narrower than common marketing language, we say so rather than leaving it unstated.
- Approved language is “lift,” for specific areas, not a general facelift claim: the FDA first cleared Ulthera in 2009 through De Novo review for non-invasive eyebrow lift, added lifting of lax submental (under-chin) and neck tissue in 2012, and added improvement of lines and wrinkles of the décolleté in 2014. Sources: BioSpace, 2009 clearance coverage; FDA 510(k) summary K134032.
- Korea: the official Korean distributor (Merz Aesthetics Korea) shows a medical device advertising review number (심의번호) valid to 7 April 2028 and describes the uses as lifting the eyebrow, sagging jawline and upper chest, and improving décolleté wrinkles. An advertising review number is not the MFDS product approval itself; approvals can be searched on the MFDS medical device portal, which we did not complete for this device. Source: Merz Aesthetics Korea.
- Clinical evidence: Amiri M et al., systematic review and meta-analysis of microfocused ultrasound (42 studies), Aesthetic Surgery Journal, 2025: about 89% investigator-assessed improvement and 84% patient satisfaction, falling to 62% where studies offered a neutral answer, with moderate pain (mean 4.85 out of 10). The authors caution that efficacy may be overestimated, and the study was funded by Merz, the device maker. Source: Aesthetic Surgery Journal (open access copy: PMC11834976).
- Not every “HIFU” device sold in Korea is Ultherapy. Other HIFU brands exist with their own, potentially different, approvals.
- Contraindications and side effects: Ulthera System Instructions for Use, sections 2.2 to 2.5. Source: ultherapy.com (PDF).
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Limits of This Summary
This page covers the Ulthera System only. Other HIFU devices offered in Korean clinics have their own approvals and trial data, which we have not reviewed here, so ask for the device name before comparing quotes.