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Sanly Liu, Miss Universe Indonesia 2025, Experiences XERF at Elea Clinic Bali

What the treatment she had actually is, why people with full diaries gravitate towards it, and why the assessment before the treatment decides more than the device does.

Sp.D.V.E board-certifiedParipurna accreditedBali's first XERF provider10+ years clinical experience

By the Elea Clinic editorial team, medically reviewed by dr. Jesslyn Amelia, Sp.D.V.E · Elea Clinic, Denpasar · 23 September 2026

Short answer. Indonesian media reported in June and July 2026 that Sanly Liu, Miss Universe Indonesia 2025, experienced XERF treatment at Elea Clinic Bali — the first clinic in Bali to offer the device. XERF is a monopolar radiofrequency system that heats the skin and the tissue beneath it to tighten existing collagen and prompt new collagen over the following months. No clinical outcome has been published for her treatment, and this page does not present her experience as evidence or as an endorsement.

Sanly Liu, Miss Universe Indonesia 2025, at Elea Clinic Bali in Denpasar
Sanly Liu, Miss Universe Indonesia 2025, at Elea Clinic, Jl. Raya Puputan 150, Denpasar, Bali.

What was reported, and what was not

When XERF arrived in Bali at the end of June 2026, Elea Clinic was the first clinic on the island to offer it (JPNN, 30 June 2026). Indonesian media covering the launch reported that Sanly Liu — Miss Universe Indonesia 2025, a Jakarta-born entrepreneur and content creator who is based in Bali — had experienced XERF treatment at the clinic. The news agency ANTARA also reported her attendance at the launch (ANTARA Bali, 30 June 2026).

Female Daily (Female Daily, 6 July 2026) reported that, as an entrepreneur, beauty influencer and titleholder with a full diary, she chose the treatment because the appointment is relatively short, is designed to stay comfortable throughout, needs no meaningful downtime, and leaves the skin feeling firmer afterwards.

That is the whole of the public record. No measurement, no photograph of a result and no clinical outcome has been published, and she has not made a claim about what the treatment achieved. We are not going to supply any of those on her behalf. She experienced the treatment; the rest of this page is about the treatment.

What XERF actually is

XERF is a monopolar radiofrequency system made by Cynosure Lutronic. Radiofrequency heats tissue in a controlled way. That heat contracts the collagen already in the skin, which is what produces the immediate feeling of tightness, and it triggers a repair response that lays down new collagen over the following weeks and months.

It holds US FDA 510(k) clearance — K251327, granted 11 August 2025 (FDA 510(k) summary K251327) — for electrocoagulation and haemostasis, on the basis of substantial equivalence to Thermage FLX, with no clinical testing in the submission.

US FDA 510(k) clearance letter K251327 for the Xerf device, dated 11 August 2025
The FDA 510(k) clearance letter for XERF, K251327, dated 11 August 2025. The clearance is for electrocoagulation and haemostasis, granted on substantial equivalence to an existing device.

Three depths, and what the second frequency is for

XERF is not one setting. The manufacturer’s protocol works at three depths across a face, and only the deepest one uses both frequencies.

The three XERF treatment depths A cross-section of skin. The shallow and middle settings use 6.78 MHz to heat the dermis and the fat just beneath it. The deep setting adds 2 MHz, which the manufacturer describes as reaching the deeper fat and fascia at lower output. EPIDERMIS DERMIS SUPERFICIAL FAT DEEP FAT Shallow Middle Deep 6.78 MHz 6.78 MHz 6.78 + 2 MHz 6.78 MHz — shallower, heats the dermis 2 MHz — added on the deep setting only
The three depth settings, drawn from the manufacturer’s protocol. Shallow and middle use 6.78 MHz to heat the dermis and the fat just beneath it. The deep setting adds 2 MHz, which the manufacturer describes as reaching the deeper fat and the fascia beneath it. Illustration by Elea Clinic; not to scale.

So why add 2 MHz at all? Radiofrequency loses energy as it travels through tissue. With a single high frequency, the only way to heat something deeper is to turn the output up — and it is high output at the surface that makes a radiofrequency treatment uncomfortable. The manufacturer’s rationale is that a lower frequency travels more efficiently, so the deep setting can reach depth at lower power, which should feel milder for the same depth of heating.

What that rationale does and does not prove

It is a design rationale, and it comes from the manufacturer’s own laboratory and animal work (Hong 2024), whose authors include manufacturer-affiliated researchers. It explains why the device is built the way it is. It does not prove that dual-frequency delivery produces a better clinical result than a single-frequency device, because no head-to-head human trial has been published.

Evidence for XERF itself is currently limited: the largest published study followed 39 people for 90 days (Cureus 2026), and no study has followed anyone beyond three months. Nobody can honestly tell you yet how long the result lasts.

Why people consider it before a busy season or a trip

The appeal is practical rather than dramatic. There are no needles and no incisions. Most people leave with warmth and some redness that settles within hours and return to normal activity the same day. For someone with a week of events, a shoot, a wedding or a flight ahead, that matters more than a stronger treatment with a fortnight of recovery.

One caution, honestly given: the tightening people notice on the day is partly genuine collagen contraction and partly swelling. The swelling settles within a couple of days, and it is common to feel less tight on day three than on day one. The result worth judging is the one at about three months. If you are treating ahead of an event, plan it several weeks before, not the week before — and leave a few days between the treatment and a long flight. Planning treatment around a trip goes through the timing in more detail.

What a session at Elea Clinic involves

dr. Jesslyn Amelia, Sp.D.V.E — a board-certified dermatologist registered with the Indonesian Ministry of Health — takes the medical history first, and it is the most important part of the appointment. The face is then cleansed and mapped, and the passes are delivered with a cooled handpiece over a coupling gel, the depth setting changing by area. Most people describe the sensation as warm rather than painful, and the energy is adjusted to what you can comfortably tolerate. The clinic confirms the appointment length when you book. A full account of a session is in the Journal.

XERF monopolar radiofrequency handpiece and cooled tip during a facial treatment
The XERF handpiece and its cooled tip, delivered over a coupling gel. The depth setting changes by area of the face.

Who should not have XERF

Not treated: anyone with a pacemaker, an implantable defibrillator or another implanted electrical device — monopolar radiofrequency passes current through tissue and can interfere with them. Pregnancy.

Assessed carefully first: metal implants or permanent filler in the treatment area; active skin infection or inflammatory skin disease at the site; a history of keloid scarring; isotretinoin within the past six months; current or recent malignancy; poorly controlled diabetes.

Probably better served by something else: heavy skin excess, where a surgical result is more meaningful than a tightening treatment. The full list sits on the XERF safety section.

Why dermatologist assessment decides the outcome

This is the part cosmetic marketing skips. Radiofrequency tightening suits early-to-moderate laxity in skin that still has reasonable quality. It does considerably less for heavy skin excess, for a significant fat pad under the jaw, or for a jawline that has softened mainly through bone and volume loss. Those are different problems, and no amount of energy turns one into the other — who is actually a good candidate sets out the distinctions.

Part of a dermatologist’s job at the consultation is to say no, or to say not this, something else. Individual results vary, and the honest version of that sentence is that they vary mostly according to who was selected for the treatment in the first place.

Not sure whether your laxity is the kind XERF helps?

That is the right question, and it is the one dr. Jesslyn answers at the consultation — sometimes by recommending something other than XERF.

Or read the treatment page: XERF at Elea Clinic

Sources

  1. JPNN, 30 June 2026 — Elea Clinic first in Bali to offer XERF; reports Sanly Liu experienced the treatment (30 June 2026).
  2. Female Daily, 6 July 2026 — her stated reasons for choosing the treatment (6 July 2026).
  3. Fimela, 1 July 2026 — launch coverage and dr. Jesslyn’s comments (1 July 2026).
  4. ANTARA Bali, 30 June 2026 — news-agency coverage of the launch (30 June 2026).
  5. FDA 510(k) summary K251327 — 510(k) K251327, cleared indication and predicate device.
  6. Hong 2024 — dual-frequency depth rationale (preclinical).
  7. Cureus 2026 — dual-frequency multicentre study, 39 subjects, 90 days.
  8. O’Connor 2021 — time course of monopolar radiofrequency results.

Questions we are asked

Did Sanly Liu endorse XERF or Elea Clinic?

No. Indonesian media reported in June and July 2026 that she experienced XERF treatment at Elea Clinic Bali and described why the format suited her schedule. She has not published a clinical result, and this page does not present her experience as an endorsement or as evidence of what the treatment achieves.

What is the difference between the shallow, middle and deep XERF settings?

The shallow and middle settings use 6.78 MHz to heat the dermis and the fat just beneath it. The deep setting adds a second frequency, 2 MHz, which the manufacturer describes as reaching deeper tissue at lower output. Which settings are used, and where, is decided at assessment.

How soon can I fly or attend an event after XERF?

Most people have only warmth and mild redness for a few hours and mild swelling for a day or two, so normal activity resumes the same day. If you are treating before something that matters, allow several weeks rather than several days, and leave a few days between the treatment and a long flight.

XERF at Elea ClinicThe treatment page, with safety and results What happens during XERFThe session, step by step XERF results timelineWhen change actually appears dr. Jesslyn AmeliaSp.D.V.E board-certified dermatologist

Medically reviewed by dr. Jesslyn Amelia, Sp.D.V.E — Dokter Spesialis Dermatologi, Venereologi dan Estetika. Registered with the Indonesian Ministry of Health, STR JT00000382760637. Verify registration. Last reviewed 27 September 2026. Individual results vary; this page is general information and not a substitute for consultation.