Short answer: Ultherapy has little or no downtime. Expect slight swelling for a few days and tenderness or tingling for a few weeks, with occasional small bruises or numbness (American Society for Dermatologic Surgery). Most people need one session of 30 to 90 minutes. Lifting builds over two to three months, can improve up to six months, and lasts up to a year. One session fits easily into a short trip, but you will see the result at home.
What Ultherapy is, and what the FDA cleared
Ultherapy uses microfocused ultrasound to heat layers under the skin, with imaging to see where the energy goes. It is FDA cleared through the 510(k) route, not approved. The most recent clearance, K260618 from May 2026, covers lifting the eyebrow, lifting lax tissue under the chin and on the neck, improving lines on the chest, and improving skin laxity on the abdomen, arms and knees.
Many clinics in Korea also offer other HIFU devices. Their settings, evidence and clearances differ, so the figures on this page apply to Ultherapy. Ask which device your clinic uses.
What the studies show
- Brow lift: 86 percent of 35 patients had a clinically significant brow lift at 90 days, averaging 1.7 mm (Alam et al., 2010).
- Lower face: blinded reviewers saw improvement in 58 percent of 93 patients at 90 days. In patients with a BMI over 30, more than half showed no change (Oni et al., 2014).
- Asian patients: in 49 Chinese patients, small bruises appeared in up to a quarter of sessions, two people had temporary darkening at one month, and pain was severe in about half of sessions. No permanent side effects were seen at six months (Chan et al., 2011).
- Rare serious burns: blistering, ulceration and skin loss have been reported but are rare (Friedmann et al., 2018).
How long to stay in Korea
The British Association of Aesthetic Plastic Surgeons (BAAPS) groups procedures for people who travel abroad. Treatments done under local anaesthetic in under 90 minutes are in its lowest group, with no extra time in the destination country needed for travel reasons. The NHS advice about waiting before flying is written for surgery, not for treatments like this one.
So what decides the length of your stay is the treatment itself: comfort and results timing. You can usually go sightseeing the next day. Pain relief before the session helps, since it can be uncomfortable. Because lifting appears over months, a trip cannot show the result. Have photos taken before treatment so you can compare at home.
A sample 3 to 5-day plan
| Days | Plan |
|---|---|
| Day 1 | Arrive. Consultation and before photos. |
| Day 2 | Ultherapy session. Rest in the afternoon. |
| Days 3 to 5 | Normal sightseeing with sunscreen. Fly home when you like. |
Replace every date with the ones your clinic gives you. The Clinic KR trip planner lays them out day by day and flags a flight that is booked too early.
Questions to ask your clinic before you book flights
- Is this device Ultherapy, or another HIFU device?
- Which areas and how many lines will you treat?
- What pain relief do you offer?
- Can I have before photos to compare at home?
- Who do I contact if I have numbness or a mark that does not fade?
FAQ
What is the downtime for Ultherapy?
Little or none. Slight swelling can last a few days and tenderness or tingling a few weeks.
When will I see Ultherapy results?
Lifting develops over two to three months and can keep improving for up to six months.
How long does Ultherapy last?
Up to a year, according to the American Society for Dermatologic Surgery.
Can I fly after Ultherapy?
No source gives a waiting time, and there is no surgical wound. Ask your provider if you have unusual swelling.
Sources
- American Society for Dermatologic Surgery. Ultrasound therapy for sagging skin. Checked October 9, 2026.
- American Academy of Dermatology. Firm sagging skin. Checked October 9, 2026.
- US Food and Drug Administration. 510(k) K260618, Ulthera System, decision 21 May 2026.
- British Association of Aesthetic Plastic Surgeons. BAAPS Cosmetic Tourism Guidelines, September 2023, v1.
- Alam M, White LE, Martin N, et al. Ultrasound tightening of facial and neck skin: a rater-blinded prospective cohort study. J Am Acad Dermatol. 2010;62(2):262-9. PubMed 20115948.
- Chan NP, Shek SY, Yu CS, et al. Safety study of transcutaneous focused ultrasound for non-invasive skin tightening in Asians. Lasers Surg Med. 2011;43(5):366-75. PubMed 21674541.
- Oni G, Hoxworth R, Teotia S, et al. Evaluation of a microfocused ultrasound system for improving skin laxity and tightening in the lower face. Aesthet Surg J. 2014;34(7):1099-110. PubMed 24990884.
- Friedmann DP, Bourgeois GP, Chan HHL, et al. Complications from microfocused transcutaneous ultrasound: Case series and review of the literature. Lasers Surg Med. 2018;50(1):13-19. PubMed 29154457.
This guide gives general information, not medical advice. Read how we research and check these guides.