Ultherapy in Singapore is micro-focused ultrasound with real-time imaging, delivered at set depths to the SMAS and dermis to tighten and lift. It differs from the Korean HIFU platforms in imaging and transducer design rather than in the physics; Dr Sin Yong performs Ultherapy Prime and Ultraformer MPT, and the assessment decides which fits a given face.
- Ultherapy is micro-focused ultrasound with real-time imaging (MFU-V), delivered at set depths to the SMAS and dermis.
- It is directed at laxity, with US FDA 510(k) clearances for brow lift, neck and under-chin lift, and décolletage lines.
- Suitability depends on whether the concern is lax skin, volume loss or fat, which assessment decides.
- It does not add volume, remove fat or resurface the skin, and does not replace a surgical facelift.
- Dr Sin Yong, an aesthetic physician, performs Ultherapy Prime personally.
- The Question Is Rarely Whether It Works
- Key Facts
- What Ultherapy Is — and What “Prime” Means
- How Ultherapy Differs From Other Energy Devices
- Who Ultherapy Suits — and Who It Does Not
- Assessment and What the Treatment Involves
- Recovery and Risks, Stated Plainly
- Areas Ultherapy Is Used On
- Where the VF Lift and a Thread Lift Fit
- What do 4D and 7D HIFU mean?
- Who it suits, who should wait, who is referred on
- What happens, step by step
- Before you book
- What determines the fee
- Myths we hear in clinic
- Ultherapy Prime vs Ultraformer MPT: imaging, transducer and limits
- Who should not have Ultherapy
- Frequently Asked Questions — Ultherapy Singapore
The Question Is Rarely Whether It Works
Most people who search for Ultherapy in Singapore have already read that it is “the FDA-cleared HIFU”. What they are unsure about is more specific: whether focused ultrasound is the right energy for their particular sag, how Ultherapy differs from the Korean HIFU platforms most clinics offer, and why one face responds while another barely changes.
This page answers those questions from the physics upward. Dr Sin Yong performs Ultherapy Prime and is also an international KOL invited to share his clinical expertise for CLASSYS, the manufacturer of the Ultraformer MPT — so the comparison below comes from a physician who uses both and has no reason to argue for one over the other. They are different instruments; the assessment decides which fits.
One distinction comes before everything else. Ultherapy tightens and lifts tissue that is lax. It does not add volume, remove fat or resurface the skin. 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.
Related: Time Freeze Laser LCLR® vs Ultherapy, Thermage and liposuction — what each does, what it cannot do, and why Dr Sin Yong chooses VF Lift for lean faces and Time Freeze for puffy ones.
Key Facts
- Technology
- Micro-focused ultrasound with visualisation (MFU-V); a non-invasive energy-based device — the skin surface is not broken
- Manufacturer
- Merz Aesthetics (originally developed by Ulthera Inc.)
- US FDA 510(k) clearances
- Brow lift (2009); lift of the neck and under-chin (2012); lines and wrinkles of the décolletage (2014)
- Transducer depths
- 1.5 mm (dermis), 3.0 mm (deep dermis and subcutis), 4.5 mm (SMAS and platysma)
- Frequencies
- 10 MHz at 1.5 mm; 7 MHz at 3.0 mm; 4 MHz or 7 MHz at 4.5 mm — lower frequency penetrates deeper
- Thermal coagulation points
- Discrete points heated to approximately 60–70 °C, each under 1 mm³, laid in lines; tissue between points is spared
- Target layer
- The SMAS (superficial musculoaponeurotic system) at approximately 4.5 mm — the layer repositioned in a surgical facelift
- Imaging
- DeepSEE® real-time ultrasound displays the tissue layers to a depth of about 8 mm before each line is delivered
What Ultherapy Is — and What “Prime” Means
Ultherapy is the brand name of the Ulthera System, the first micro-focused ultrasound device to receive US FDA 510(k) clearance for a lifting indication, and it is made by Merz Aesthetics. The term MFU-V — micro-focused ultrasound with visualisation — names what separates it from the wider HIFU category: the handpiece that treats also images the tissue it is about to treat.
How focused ultrasound heats tissue
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 acoustic energy is absorbed as heat, raising a volume of tissue under 1 mm³ to roughly 60–70 °C for a fraction of a second, and the protein in it coagulates. The skin above the focus and the tissue below it receive far less energy.
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 as it does any small injury — inflammation, fibroblast activation, then new collagen and elastin as the coagulated tissue contracts. The lift is the sum of that contraction across hundreds of points in the SMAS and dermis. It is biological rather than mechanical, and it develops over the course of collagen remodelling rather than on the day.
The three depths
At 4.5 mm the target is the SMAS and, in the neck, the platysma — the fibromuscular layer a surgical facelift tightens. At 3.0 mm it is the deep dermis and the fibrous septae running through the superficial fat. At 1.5 mm it is the dermis itself, used around the eyes, on the forehead and on the décolletage, where there is no SMAS to reach. Lower frequency travels further: the 4.5 mm line is delivered at 4 MHz or 7 MHz, the 3.0 mm line at 7 MHz and the 1.5 mm line at 10 MHz.
DeepSEE: seeing before treating
The visualisation is the part most patients underestimate. Before each line is fired, the transducer displays a real-time ultrasound image of the tissue beneath it to a depth of about 8 mm: dermis, subcutaneous 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, and why the depth for each zone is chosen from the picture rather than from a default setting.
What “Prime” refers to
Ultherapy Prime is the current-generation platform from Merz. The physics — MFU-V, the same depths, frequencies and thermal coagulation points — is unchanged; the console, handpiece and imaging display used for planning are updated. Dr Sin Yong performs Ultherapy on the Prime platform.
“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
How Ultherapy Differs From Other Energy Devices
The devices below are not rivals on a scale. They are different mechanisms for different tissue problems, and Dr Sin Yong uses each of them. The comparison is about what the energy does, not which is better.
Non-visualised HIFU — Ultraformer MPT
The Ultraformer MPT from CLASSYS is also focused ultrasound, with cartridges at 1.5, 2.0, 3.0 and 4.5 mm and deeper ones for the body; the principle of a focused beam creating thermal coagulation points is the same. Two things differ. It has no imaging: depth is fixed by the cartridge, and the physician judges where the focus lands from anatomy and palpation rather than a picture. And its micro-pulsed (MP) mode delivers each line as a rapid train of smaller pulses, which changes the shape and comfort of the coagulation and suits denser coverage. Dr Sin Yong is invited to share his clinical experience on this platform internationally; the VF Lift does not use it. The category is covered on the HIFU in Singapore page, and the physics side by side in Ultherapy vs HIFU.
Monopolar radiofrequency — Thermage FLX
Thermage FLX is not ultrasound. It passes monopolar radiofrequency at 6.78 MHz between a large treatment tip and a return pad, heating the dermis and subcutis volumetrically — bulk heating of the whole zone under the tip rather than discrete points, at a shallower effective depth than a 4.5 mm SMAS line. It is directed at dermal tightening across a surface; Ultherapy at points in a deep layer. The two are sometimes planned together for that reason. See Thermage radiofrequency face lift.
Threads and surgery — mechanical repositioning
A thread lift places absorbable sutures that physically move tissue upward; a surgical facelift releases and re-suspends the SMAS. Both reposition tissue on the day. Focused ultrasound moves nothing; it triggers contraction, which is why its ceiling is set by how much skin excess exists. Where the examination finds more excess than energy can contract, the Bliss Lift thread lift is the mechanism discussed instead, or alongside.
Who Ultherapy Suits — and Who It Does Not
Generally a good candidate
Mild-to-moderate laxity of the brow, jawline, under-chin or neck. Skin that still has reasonable thickness and recoil when pinched. A face that has kept most of its volume. A preference for a non-invasive route over surgical repositioning. Realistic expectations: a degree of tightening, not a facelift.
Usually directed elsewhere
Significant skin excess or heavy jowls, where the problem is more tissue than laxity. Very thin faces or hollow cheeks, where heat in the subcutaneous fat risks further volume loss. Heaviness that is fat rather than loose skin. Active infection, open wounds or active acne in the field. Pregnancy or breastfeeding. Pacemakers, implanted electronic devices or metallic implants in or near the field. A keloid tendency or poor healing. Recent filler or threads in the area, which are timed around.
These are not verdicts; they are what the examination looks for. Readers whose concern is the lower face will find the pattern-based discussion on the jowls and lower-face sagging page useful, and the overview of sagging face treatment sets out how each mechanism is matched to a pattern of descent.
Assessment and What the Treatment Involves
Assessment
Dr Sin Yong examines the face at rest and in animation, pinches and lifts the skin to gauge its recoil, and separates laxity from volume loss and from fat. He notes skin thickness and checks for the exclusions above. If Ultherapy is not the right mechanism, he says so; that is a common outcome of the appointment.
Planning the map
Lines are planned zone by zone — which depths, how many lines, in which direction — according to where the SMAS sits and which way the tissue needs to travel. The plan is made individually, not from a template, and adjusted on the day to what the imaging shows.
Preparation
The skin is cleansed and the zones marked. Analgesia is discussed and provided according to the areas being treated and the patient’s tolerance; the 4.5 mm lines are felt most. Ultrasound gel couples the transducer to the skin so the beam enters without an air gap.
Imaging and delivery
For each line the transducer is placed, the DeepSEE® image is checked to confirm the target layer and full contact, and the line is delivered. Dr Sin Yong performs the treatment himself. Sensations range from warmth to a brief deep ache along the line, most noticeable over bone and along the jaw.
Afterwards
Gel is removed. The skin may be flushed and slightly swollen. Ordinary activities, make-up and skincare can resume, and sun protection continues as usual.
Recovery and Risks, Stated Plainly
What is normal
Recovery varies. 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 as the tissue settles, and small bruises are possible. None of these need treatment beyond time.
What warrants review
A welt or linear 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 they 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 being treated. Nerve irritation — usually the marginal mandibular branch along the jaw or the temporal branch above the brow — can cause temporary weakness; it results from heat close to a nerve and is the reason imaging and anatomy matter. Fat atrophy is the risk most specific to focused ultrasound: heat placed into subcutaneous 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. Uneven contour, prolonged swelling and persistent tenderness are also reported. Each is less likely when the focus is placed under imaging by a physician who knows where the nerves and fat compartments run.
Areas Ultherapy Is Used On
Brow & Forehead
The original cleared indication. Lines are directed at the lateral brow and forehead, at the tissue that lets a heavy brow crowd the upper lid, using the 1.5 mm and 3.0 mm depths; there is little SMAS above the brow.
Lower Face & Jawline
Lines along the SMAS at 4.5 mm with dermal lines at 3.0 mm above, directed along the jawline where early jowling forms.
Under-Chin & Neck
The 2012 clearance. The platysma and submental tissue are treated at 4.5 mm with dermal lines above. This is directed at laxity, not at submental fat, which needs a different mechanism.
Mid-Face
Early descent of the cheek. Treated with caution in a thin face because of the fat-atrophy risk; often the zone where a different mechanism is chosen.
Décolletage
The 2014 clearance for lines and wrinkles of the chest. Superficial depths are used; there is no SMAS to reach.
Periorbital
The 1.5 mm transducer for crepey skin around the eyes, kept within the bony orbital rim so the globe is never in the beam path.