Ulthera vs Thermage Differences — Comparing Two Non-Surgical Lifting Methods

Key summary. Ulthera uses focused ultrasound, while Thermage uses monopolar radiofrequency — the energy delivery methods differ. In a randomized trial that directly compared the two methods 2, there was no statistical difference in sagging improvement, satisfaction, or side effects, and the only difference found was pain during the procedure (greater with ultrasound).

What this article covers

• Comparison criteria: energy method · heating layer · effectiveness (RCT) · pain · side effects
• Caution: study sizes were around 20 participants, with follow-up of 180 days — no evidence exists beyond that
• Evidence status: 2 RCTs · 1 meta-analyses · 1 reviews · confirmed regulatory approval information for both devices

Key points

1. Shared features: both are non-incisional procedures that heat a layer beneath the skin to induce tissue contraction and collagen regeneration, with effects appearing gradually from around days 30 to 90.
2. Key differences: the energy type (ultrasound vs. radiofrequency) and pain during the procedure (greater with ultrasound). No difference in effectiveness has been confirmed.
3. Decision factors: pain sensitivity, the layer/area of sagging as judged by the practitioner, and recovery circumstances — these should be confirmed during consultation.

01Similarities

Both procedures are non-surgical methods that protect the epidermis while heating the layer beneath it, and improvement occurs gradually over weeks to months rather than immediately. The studies were conducted on subjects with mild to moderate sagging.

02Differences

The evidence for this table comes from 2 direct-comparison RCTs (PMID 30531187, PMID 28902019 — covering pain and sagging improvement by energy method) and 2 reviews/meta-analyses (PMID 40167815, PMID 18940540 — covering heating method and academic assessment). Values are based on PubMed abstracts dated 2026-09-16. Lower neck sagging grades indicate less sagging; both groups showed decreasing (i.e., improving) grades over time, and at days 90 and 180 there was no statistical difference between groups. Both RCTs involved approximately 20 participants, so caution is needed in generalizing the results.

It's also worth noting that pain intensity and effect size are separate axes. Ulthera (focused ultrasound) concentrates energy at a single point at a specific depth beneath the skin, heating it strongly and instantaneously, which makes that stinging heat sensation easy to perceive as pain. Thermage (monopolar radiofrequency) heats a broader layer relatively gently, so momentary pain is less. What the grade figures above show is that the process of sagging improvement through collagen regeneration over time progressed similarly for both methods, and the assumption that "more pain means more effective" is not supported by this RCT data.

The strengths and limitations of the direct-comparison studies also deserve attention. One study applied different procedures to each side of the same participant's face to reduce the influence of individual variation in skin condition, but the study had only 20 participants and followed up only through day 180. Another study divided 20 participants into two groups to compare neck sagging, so while average changes could be confirmed, the sample was too small to finely break down differences by age, skin thickness, or treatment settings. Therefore, "no statistical difference was found" does not mean the two methods are identical under all conditions — it means that, within the scale and measurement methods of these studies, no superiority of either method was confirmed.

A meta-analysis combining 12 studies and 475 participants also reported potential improvement with HIFU-type devices, but noted that because devices, treatment areas, and rating scales varied across studies, it was difficult to combine the results into a single figure. During consultation, rather than comparing brand names alone, patients should ask about the actual device used, the area being treated, measurable goals, and a trackable follow-up period, all under the same conditions.

03Choosing Based on Your Situation

• If sensitive to pain → since no difference in effectiveness has been confirmed, it may be worth starting with a consultation about the radiofrequency method, which involves less pain
• If the practitioner judges the sagging to be in a deeper layer → ask about the ultrasound method, which allows adjustment of focal depth
• If focused on under-eye or surface fine lines → radiofrequency reviews mention under-eye and lower-face wrinkles as a primary indication
• Whether to combine the two → depends on individual skin condition and practitioner judgment, with no uniform answer

04Cautions

This article does not recommend one of the two procedures over the other. The studies followed patients only through day 180. In cases of severe sagging, both methods have limitations, and comparison with surgical options may be necessary.

05Common misconceptions

"Since a direct-comparison study exists, a conclusion must have been reached about which is better" — actually, the opposite is true. The existence of 2 direct-comparison RCTs is not the same as one method having "won". The conclusion of these studies is that "there was no statistical difference in effectiveness, satisfaction, or side effects," not that one method is superior.

"More pain means more effectiveness" — as explained in the table description at 1 above, pain intensity comes from the difference in how energy is delivered to the skin (concentrated strongly at one point vs. spread gently over a broad area), and in these RCTs it was not linked to the final degree of sagging improvement.

"This comparison article tells me which one I should choose" — the comparison criteria in this article reflect average tendencies drawn from the study subjects (mild to moderate sagging, approximately 20 participants). The choice suited to an individual's degree of sagging, area, and skin condition should be confirmed through consultation with a practitioner, and this article is best used as a list of questions to ask during that consultation.

06In summary

Both procedures take a similar approach — heating a lower layer without incision to improve sagging over time — and in direct-comparison RCTs, no statistical difference was found in sagging improvement or side effects. The confirmed difference lies only in the method of energy delivery (ultrasound's point coagulation vs. radiofrequency's surface heating) and the resulting difference in pain during the procedure. The conclusion actually supported by these two RCTs is not "which one is better," but rather choosing based on "how much pain you can tolerate" and "which layer the practitioner believes your sagging originates from," determined through consultation. For a deeper look at the principles and evidence behind each device itself, see the separate articles on Ulthera and Thermage.

07Frequently Asked Questions

Which is more effective, Ulthera or Thermage?

2 direct-comparison RCTs and meta-analyses found no statistical difference in sagging improvement. There is currently no evidence that one is superior to the other.

Which causes less pain, Ulthera or Thermage?

In the neck-sagging RCT, pain during the procedure was greater with Ulthera (focused ultrasound). However, individual pain perception varies considerably, so confirming anesthesia and pain-management methods in advance during consultation is a more practical way to prepare.

Can I get Ulthera and Thermage together?

No RCT directly verifying the safety and effectiveness of combining the two procedures was found for this article. While there is evidence for the effects of each device individually, interactions when combined have not been confirmed, so whether to combine them depends on individual skin condition and practitioner judgment and should be confirmed during consultation.

How long do the effects of the two procedures last?

Both RCTs confirmed effects were maintained through day 180, and anything beyond that falls outside the scope of the studies. In other words, whether effects persist after 6 months remains a question this evidence alone cannot answer.

Is Thermage a lifting treatment or a wrinkle-improvement treatment?

A 2008 review describes its primary uses as facial/under-eye/lower-face wrinkles and mild tightening for mild sagging. It is treated as an indication closer to fine wrinkles and mild loss of elasticity rather than pronounced sagging.

08Pre-consultation checklist

• □ I received an explanation from the practitioner about which layer/area my sagging originates from
• □ I was informed about the pain difference between the two methods and the anesthesia/pain-management options
• □ I asked whether claims of "greater effectiveness" are backed by evidence (research) — current RCTs show no difference
• □ I was informed about what to do if both methods have limitations (considering surgery)
• □ I confirmed the device's regulatory approval and the practitioner's qualifications

09Sources and verification date

• PMID 30531187 — Confirmed as of 2026-09-18.
• PMID 28902019 — Confirmed as of 2026-09-18. Grade figures are presented directly in the abstract results.
• PMID 40167815 — Confirmed as of 2026-09-18. Selected 12 of 118 studies, with only 2 being randomized controlled trials, which may overlap with the two RCTs above.
• PMID 18940540 — Confirmed as of 2026-09-18. A 2008 narrative review.
• Korea MFDS medical device UDI lookup — Ulthera 수허 09-1024 호, Thermage FLX 수허 18-245 호, confirmed as of 2026-09-17 via direct lookup on the official database (lookup page)
• The above studies are provided for understanding procedure principles and effects, and do not guarantee outcomes for any specific clinic, practitioner, or patient.

10Editorial responsibility and interests

• Written by: Korea Beauty Report Editorial Team · Editorial responsibility: Korea Beauty Report Editorial Team
• Medical review: None — reviewed for source accuracy by the editorial team
• Conflicts of interest: No contracted or advertising relationship with any clinic or brand in this article
• First published: 2026-09-18 · Sources last verified: 2026-09-18