Key summary. Ulthera is a non-surgical lifting procedure that uses focused ultrasound (MFU-V, part of the HIFU family) to apply heat to deeper layers of the skin and induce improvement in sagging. In randomized controlled trials, significant improvement in facial and neck sagging was observed starting at 30 to 90 days and persisted through 180 days, but these results come from small studies of around 20 participants, and there is academic debate over the effect size, so the consensus is that higher-quality research is still needed.
What this article covers
- Comparison criteria: energy method (focused ultrasound) · timing of improvement (30-90 days) · duration (180-day follow-up) · pain
- Precautions: limited effectiveness for severe sagging, pain during the procedure tends to be greater than with radiofrequency, individual variation in results, small study sizes
- Evidence status: 2 RCTs, 1 meta-analysis, FDA registration, and confirmed MFDS (Korean Ministry of Food and Drug Safety) approval information
Key points
- Definition: A non-surgical procedure that concentrates focused ultrasound energy in deep layers of the skin to create thermal coagulation points, inducing tissue contraction and collagen regeneration.
- Who it's for: Improvement has been reported for mild to moderate sagging (based on study populations). Severe sagging requires comparison with surgical options.
- What to check, in order: device approval → practitioner qualifications → whether claims about effectiveness and duration are exaggerated → guidance on pain and side effects.
01How does it work, and why this particular method?Ulthera's mechanism is formally known as MFU-V (Microfocused Ultrasound with Visualization) — focused ultrasound guided by real-time ultrasound imaging. As the name "focused" suggests, rather than delivering energy to a single point on the skin's surface, the device concentrates ultrasound energy — much like a lens focusing light — onto a single point at a specific depth beneath the skin, creating a small thermal coagulation point only at that location. It differs from surface-based treatments such as lasers in that it leaves the surface untouched and targets only the deeper layer. This thermal stimulation is described as inducing contraction and collagen regeneration in the surrounding tissue, gradually improving sagging over time.
The device is registered with the U.S. FDA under the category "focused ultrasound for tissue heating" (product code OHV). In Korea, it is confirmed in the Ministry of Food and Drug Safety's medical device UDI lookup as 수허 09-1024호 (Class 3 focused-type ultrasound stimulation system).
02What the research confirms — and what it doesn't
Two randomized controlled trials (RCTs) directly compared Ulthera (MFU-V) and radiofrequency (RF) devices under matched conditions. An RCT is a study design that randomly assigns participants for comparison, and among these, the study with PMID 30531187 used a "split-face" design — treating the two halves of a single person's face with different procedures — which reduces the influence of individual variation.
| Item | Confirmed finding | |
|---|---|---|
| Onset of improvement | Face and upper neck: significant from day 30 / Neck: significant from day 90 | |
| Neck sagging grade over time (focused ultrasound group) | Baseline 2.8 → Day 30: 2.4 → Day 90: 1.5 → Day 180: 1.4 (lower grade = less sagging) | |
| Neck sagging grade over time (RF group) | Baseline 2.7 → Day 30: 2.1 → Day 90: 1.6 → Day 180: 0.86 | |
| Global Aesthetic Improvement Scale (GAIS) | Both methods showed reported improvement at days 30, 90, and 180 | |
| Duration | Maintained through the 180-day follow-up (beyond that is outside the scope of the studies) | |
| Study population | Mild-to-moderate sagging, approximately 20 participants per study | |
| Pain | Greater procedural pain than RF (Thermage-type) devices | |
| Adverse events | Mild and transient | |
| Academic assessment † | Promising but debated; standardized, high-quality studies are still needed | The table's improvement-onset-to-side-effect data come from two RCTs, PMID 30531187 and PMID 28902019, while † the academic assessment alone comes from a separate meta-analysis (PMID 40167815). Values are current as of the 2026-09-18 recheck (all at abstract level only; the full text requires a subscription and was not verified). There is a limitation worth noting in the academic assessment meta-analysis. Its abstract states that it selected only 12 of 118 papers, and that only 2 of those were randomized controlled trials — and the two RCTs cited above (PMID 30531187 and PMID 28902019) may well be those same two studies. That means this may not be a fully independent third piece of evidence but rather a re-synthesis of the same underlying data through a different method, which should be kept in mind when counting the number of independent evidence sources. The sample size of 20 people is also not something to gloss over. In clinical research, a sample of 20 carries a relatively high risk that results are skewed by individual variation or chance. A "statistically significant" result means the finding is unlikely to be due to chance — it does not mean every person will experience the same degree of improvement. So these figures should be read as reference data — "a study reported this much improvement on average" — not as numbers that predict any specific individual's outcome. |
03What to Check Before the Procedure
| Item to Check | Why It Matters | How to Check |
|---|---|---|
| Device approval | Whether it is a genuine, officially approved device | Check the Ministry of Food and Drug Safety (MFDS) medical device UDI/EDI registry — Ulthera-type devices carry approval number 수허 09-1024호 |
| Practitioner qualifications | Specialist status and experience | Clinic disclosure + HIRA public data (number of specialists at the institution level) |
| Explanation of effect and duration | Whether claims are exaggerated | The studies only followed patients up to 180 days, and even that was a 20-person study — terms like "permanent" or "guaranteed" go beyond this evidence and are a red flag |
| Pain guidance | Tends to be more painful than radiofrequency | Whether anesthesia/pain-control methods are explained beforehand |
| Side effect guidance | Swelling, bruising, temporary sensory changes, etc. | Whether written information is provided during consultation |
04Choosing by Condition- 절개 없이 회복을 짧게 → 비수술 리프팅(울쎄라 등)부터 검토
- 통증에 민감 → 고주파 방식(써마지)과 효과 차이가 없다는 RCT가 있으므로 통증이 덜한 쪽을 상담에서 비교
Translated:
- Want a short recovery without incisions → start by reviewing non-surgical lifting procedures (such as Ulthera)
- Sensitive to pain → an RCT found no difference in effectiveness compared to the radiofrequency method (Thermage), so compare which option involves less pain during consultation
- Sagging is severe and duration matters most → a comparison with a surgical method (facelift) is needed
05Common misconceptions
"Once you get it, the effect lasts a lifetime" — the studies only followed patients up to 180 days (about 6 months). How long the effect lasts beyond that point is not something these studies answer, and since aging continues to progress, it is common guidance that repeat treatment may be needed. If you come across expressions like "lifetime" or "semi-permanent," you should ask what evidence they are based on.
"A bigger number (a larger grade change) always means a better procedure" — looking only at the neck-sagging grade trend in the table above, the radiofrequency method appears to have a lower value at the 180-day mark (0.86), but the actual conclusion of that study was that "there was no statistically significant difference between the two methods". Judging superiority based on a single number pulled out of the table leads to an interpretation different from the study's actual conclusion.
This article is not medical advertising and does not guarantee results.
06In summary
There are broadly three things to check when researching Ulthera. First, understand how large and how long the studies backing this procedure are (currently around 20 people, 180 days) before approaching it. Second, check whether the explanations of effect and duration use definitive language (lifetime, guaranteed) that goes beyond this evidence. Third, verify that the device is actually a genuine product registered with the Ministry of Food and Drug Safety (Approval No. 09-1024) and confirm the practitioner's qualifications.
07Frequently Asked Questions
When does the effect of Ulthera start to show?
In the RCT, sagging scores for the face and upper neck improved significantly starting at 30 days, and for the neck starting at 90 days, with the improvement maintained through 180 days. However, this is the result of a study involving only 20 people, and individual variation exists, so it is advisable to reconfirm the expected course based on your own condition during consultation.### Ulthera FAQ
Does Ulthera's effect last after a single treatment? The studies only followed patients for up to 180 days. There is no evidence beyond that point, and because aging continues, a repeat treatment may become necessary. If you've been told the results are "permanent," it's worth asking what evidence supports that claim.
Is Ulthera painful? In a randomized controlled trial on neck laxity, Ulthera was reported to cause more pain during the procedure than radiofrequency treatment. Pain tolerance varies widely between individuals, so confirm the anesthesia and pain-control method during your consultation.
Are Ulthera and Thermage the same procedure? No. Ulthera uses focused ultrasound, while Thermage uses monopolar radiofrequency. Head-to-head studies have not found a difference in effectiveness, though Ulthera was reported to cause more pain. For a detailed comparison, see Ulthera vs. Thermage.
How do I choose a clinic for Ulthera treatment? Check the device's approval status, the practitioner's qualifications, pain and side-effect explanations, and cost transparency. The recommended verification steps are outlined in How to Find a Clinic for a Lifting-Procedure Consultation. This site does not provide clinic rankings.
08Pre-consultation checklist
- □ Confirmed the device name and its approval status (
수허 09-1024 호) - □ Confirmed the qualifications of the medical staff who will actually perform the procedure
- □ Received an explanation of the limits of the effect and its duration (180 days in the study, a sample of 20 people) without terms like "permanent" or "guaranteed"
- □ Received an explanation of the expected pain level and the anesthesia/pain-control method
- □ Received written guidance on side effects and how they will be handled
- □ Confirmed costs in advance by treatment area and number of sessions## Sources and verification date
- PMID 30531187 — Verified 2026-09-18. 20-person split-face RCT, face and upper neck.
- PMID 28902019 — Verified 2026-09-18. 20-person RCT; neck sagging grade figures are presented directly in the abstract's results section, so numerical accuracy is high.
- PMID 40167815 — Verified 2026-09-18. HIFU meta-analysis of 12 studies and 475 participants; the abstract states only 2 of these were randomized controlled trials — these may overlap with the 2 RCTs above, so this may not be fully independent evidence.
- FDA 510(k) K180623 — Verified 2026-09-16 (device registration/classification only, checked directly in the official database)
- MFDS (Korea) Medical Device UDI lookup — Ulthera, License No. 09-1024, Verified 2026-09-17, checked directly in the official database (lookup page)
- The studies above are provided for understanding the principles and effects of the procedure and do not guarantee the outcomes of any specific clinic, practitioner, or treatment.
09Editorial responsibility and interests
- Written by: Korea Beauty Report editorial team · Editorial responsibility: Korea Beauty Report editorial team
- Medical review: None — content verified by the editorial team (if an actual reviewer is assigned, their name, scope, and date will be disclosed)
- Conflicts of interest: No contracted or advertising relationship with any clinic mentioned in this article
- First published: 2026-09-18 · Last fact-check: 2026-09-18