Medically reviewed by Dr Sin Yong · Last reviewed · 15 min read · Doctor-performed, never delegated · Jump to questions
Related: HIFU treatment in Singapore, HIFU vs Ultherapy vs Thermage.
Dr Sin Yong · MBBS (NUS) · MRCS (Edin) · MSc Aesthetic Medicine with Distinction (Queen Mary, London) · MSc Practical Dermatology (Cardiff) · Global Key Opinion Leader
Ultherapy® is micro-focused ultrasound with visualisation (MFU-V), made by Merz Aesthetics and FDA-cleared for lifting the brow, the neck and the under-chin, and for lines of the décolletage. It directs discrete points of heat at the SMAS layer, about 4.5 mm below the surface, while imaging the tissue in real time.
Ultherapy in Singapore is worth considering when the problem is lax tissue rather than lost volume, fat or surface texture. Its distinguishing feature is that the handpiece images the layers it is about to heat, down to the SMAS. Dr Sin Yong also works with Ultraformer MPT, so the choice between them is made at assessment, face by face, rather than by brand.
Looking for HIFU in general? Start at HIFU Singapore.
Ultherapy is micro-focused ultrasound with visualisation (MFU-V), made by Merz Aesthetics. A curved transducer focuses ultrasound so the beam converges at a fixed distance below the skin, much as a lens focuses light. At that focal point the energy is absorbed as heat, raising a volume of tissue under 1 mm³ to roughly 60–70 °C for a fraction of a second. The skin above the focus receives far less energy and is not broken.
Each pulse produces one thermal coagulation point; the handpiece lays a line of them, and a treatment is a planned pattern of lines. The body repairs each point with new collagen as the coagulated tissue contracts. The lift is biological rather than mechanical, so it develops with collagen remodelling rather than on the day.
| Transducer depth | Frequency | Layer reached | Where it is used |
|---|---|---|---|
| 1.5 mm | 10 MHz | Dermis | Around the eyes, the forehead and the décolletage, where there is no SMAS to reach |
| 3.0 mm | 7 MHz | Deep dermis and the fibrous septae of the superficial fat | Dermal lines above the deeper lines, and thinner zones |
| 4.5 mm | 4 or 7 MHz | The SMAS and, in the neck, the platysma | Jawline, under the chin and the neck |
The visualisation is the part most patients underestimate. Before each line, DeepSEE® imaging shows the tissue beneath the transducer to a depth of about 8 mm: dermis, fat, SMAS and bone. On a thin temple the SMAS may lie at 3 mm; on a full cheek the 4.5 mm focus may land in fat. Imaging is how those mismatches are seen and corrected before energy is delivered.
Ulthera is the original company and device, the Ulthera System, which was the first micro-focused ultrasound device to receive US FDA 510(k) clearance for a lifting indication. Its clearances cover lifting the brow (2009), lifting the neck and the tissue under the chin (2012), and lines and wrinkles of the décolletage (2014). Ultherapy is the brand name of the treatment, now owned by Merz. Ultherapy Prime is the current platform: the console, handpiece and imaging display are updated, while the depths, frequencies and coagulation points are unchanged. Dr Sin Yong performs Ultherapy on the Prime platform.
Ultherapy is right for you if your main concern is mild to moderate loose skin in the brow, jawline, under-chin or neck, and your face has kept its volume. It is the wrong tool if the problem is hollowing, heaviness from fat, or a lot of excess skin. Age is not the deciding factor; the tissue is.
| Group | What it looks like | What usually happens |
|---|---|---|
| Tends to suit | Mild to moderate laxity of the brow, lower face, jawline or neck; lines on the décolletage; a face that has kept its volume | Ultherapy is planned zone by zone from the image |
| Should wait | Pregnancy or breastfeeding; open wounds, active infection or inflamed acne in the area; recent filler or threads in the zone | Treatment is timed around these |
| Assessed first | A pacemaker or implanted electronic device; metal implants near the field; poor healing; a keloid tendency, which is usually not a reason to hold off | The plan changes, or another route is chosen |
| Better served elsewhere | A very thin face or hollow cheeks; heaviness that is fat rather than loose skin | Volume restoration, fat-directed options or a different energy |
| Referred on | Significant skin excess or heavy jowls | Referral to a plastic surgery specialist |
A quick self-check helps before you come in. Lift the skin gently at the jaw in a mirror: if the line improves, laxity is part of it. If the cheek above looks hollow, volume is part of it, and ultrasound does not add volume. Skin that hangs in folds is a surgical question. Readers whose concern is the lower face will find jowls and lower-face sagging useful.
The devices below are not rivals on a scale. They are different mechanisms for different tissue problems, and Dr Sin Yong performs each of them, so the comparison is about what the energy does, not which is better.
| Option | What it does | What it cannot do | Who it tends to suit |
|---|---|---|---|
| Ultherapy Prime | Coagulation points at 1.5, 3.0 and 4.5 mm, including the SMAS, with the tissue imaged before each line | Add volume, remove fat or remove skin excess | Laxity where seeing the depth matters, such as a thin temple |
| Ultraformer MPT (HIFU) | Focused ultrasound with depth fixed by cartridge at 1.5, 2.0, 3.0 or 4.5 mm, and a micro-pulsed mode for denser coverage | Image the tissue before each line, or add volume | Laxity where depth is judged from anatomy and palpation |
| Thermage FLX | Monopolar radiofrequency at 6.78 MHz heating the dermis in bulk under the tip | Place discrete points in the SMAS, or add volume | Dermal laxity across a surface, sometimes planned with ultrasound |
| VF Lift – Vertical Facelift | Volnewmer monopolar radiofrequency along vertical vectors; no focused ultrasound | Replace lost volume or remove skin excess | Laxity that coexists with fullness to address |
| Bliss Lift thread lift | Absorbable cog threads reposition descended tissue on the day | Add volume or remove skin | Early jowling with skin that still has elasticity |
Ultherapy Prime and the Ultraformer MPT share the physics; the difference is design. Ultherapy images the tissue before each line, while the Ultraformer relies on cartridge depth and the physician's reading of anatomy. The wider HIFU category is covered on HIFU Singapore, and the platforms side by side on Ultherapy Prime vs Ultraformer MPT vs Shurink. Ultrasound against radiofrequency is compared on Ultherapy vs Thermage and Volnewmer vs Ultherapy.
4D and 7D HIFU are marketing labels, not separate technologies or recognised generations. They are not standardised, so one maker's 7D cannot be compared with another's 4D, and a higher number does not mean deeper treatment. Ask which device it is, whether it is registered with the Health Sciences Authority, which depths will be used, whether the tissue is imaged, and who treats you.
Ultherapy tightens and lifts tissue that is lax. It does not add volume, remove fat or resurface the skin, and it does not replace a surgical facelift. If the face has hollowed, or the heaviness is fat rather than loose skin, focused ultrasound is directed at the wrong problem, and more of it will not correct that. When a face needs more than tightening, another treatment is paired with it, chosen from the examination rather than a menu.
| Finding | Why Ultherapy alone falls short | What is paired or chosen instead |
|---|---|---|
| Laxity with hollowing at the temple or cheek | Ultrasound cannot put back volume | Filler or a biostimulator for structure |
| Laxity in the skin itself as well as the SMAS | Points in a deep layer leave the surface envelope | Thermage FLX for bulk dermal heating |
| Lax tissue under dull, dehydrated skin | Ultrasound does not change surface quality | A skin booster |
| More skin excess than energy can contract | Tightening has a ceiling set by the excess | The Bliss Lift, or referral for surgery |
| Fullness under the chin or a heavy lower face | The heaviness is fat, not laxity | The VF Lift – Vertical Facelift or a fat-directed option |
How each mechanism is matched to a pattern of descent is set out on sagging face treatment.
What is normal. Redness usually settles as the skin cools. Tenderness along the treated lines, mild swelling and an occasional patch of numbness or tingling can persist for a time, and small bruises are possible. None of these need treatment beyond time.
What warrants review. A welt or ridge that does not flatten; a white line, blister or crust on the surface; new weakness of a facial muscle, such as an uneven smile or difficulty raising a brow; or numbness that is not improving. These are uncommon and are reviewed promptly rather than watched.
The risks. Surface burns are rare but possible if coupling is poor or the focus is too superficial for the skin. Nerve irritation, usually of the marginal mandibular branch along the jaw or the temporal branch above the brow, can cause temporary weakness. Fat atrophy is the risk most specific to focused ultrasound: heat placed into fat rather than the SMAS, or over-treatment of a thin face, can cause volume loss that reads as hollowing. That is why a very thin face is a reason for caution, not for more lines. Each risk is less likely when the focus is placed under imaging by a physician who knows where the nerves and fat compartments run. More detail is on Ultherapy side effects.
The areas treated most often are the brow and forehead, the lower face and jawline, and the under-chin and neck; the décolletage and the skin around the eyes use superficial depths only, kept within the bony orbital rim. The checklist is on Ultherapy aftercare, and the visit is walked through on what a HIFU visit involves.
This site does not publish fees. Your fee is set out in writing at consultation, after Dr Sin Yong has assessed you and before anything is decided.
How quotes work at this practice is on how we quote.
Most people who search for Ultherapy have already read that it is the FDA-cleared HIFU. What they are unsure about is whether focused ultrasound is the right energy for their particular sag, and why one face responds while another barely changes. Dr Sin Yong answers that from the examination. He performs Ultherapy Prime himself and checks the DeepSEE image before each line, so the depth for each zone is confirmed rather than assumed. He is also invited by CLASSYS, the maker of the Ultraformer MPT, to share his clinical expertise internationally, so the comparison comes from a physician who uses both.
“Lifting tissue that has lost volume does not replace the volume. Ultrasound can tighten what is there; it cannot put back what has gone.”
Dr Sin YongOn laxity versus volume loss
He sometimes plans Ultherapy alone, sometimes alongside another mechanism, and sometimes not at all. Because he also performs the Ultraformer MPT, Thermage FLX, the VF Lift – Vertical Facelift and the Bliss Lift, the recommendation follows the anatomy rather than the device in the room. When Ultherapy is not suitable, that is said plainly, and the written plan states which mechanism was chosen and why the others were set aside. Suitability is decided in person, never from a photograph.
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Medically reviewed by Dr Sin Yong, MBBS (NUS), MRCS (Edinburgh) · Last reviewed 23 October 2026 · Editorial policy
The focused-ultrasound category, and how the platforms differ.
Monopolar radiofrequency at 6.78 MHz for dermal tightening.
Which energy for which layer.
Matching the mechanism to the pattern of laxity.
Volnewmer monopolar radiofrequency; no focused ultrasound.
Depth, imaging and skin type.
FDA-cleared micro-focused ultrasound, performed by Dr Sin Yong under real-time tissue imaging. Consultations by appointment, Orchard Road, Singapore.
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