Ultrasound · Radiofrequency · Pacific Plaza
Sofwave vs HIFU is really a question of depth: Sofwave sends parallel ultrasound beams into the mid-dermis at about 1.5 mm, focused ultrasound (HIFU) places heat at set points down to the SMAS, and monopolar radiofrequency warms a broad volume of dermis and the fibrous network beneath it. Here is which layer each reaches, which faces each suits, and what none can do. Sofwave is not offered at Atelier; it is described here for comparison.
All three skin tightening treatments heat tissue in a controlled way so that collagen contracts and then remodels over weeks to months. What differs is where the heat lands.
Sofwave uses synchronous, parallel ultrasound beams that are not brought to a focus. They warm a band of mid-dermis at about 1.5 mm while the surface is cooled. It is positioned for dermal firmness and fine lines.
HIFU brings ultrasound to small points beneath an intact surface, at roughly 60–70 °C at each point, while the tissue between the point and the skin is largely spared. At Atelier the depths are 1.5 mm, 3.0 mm and 4.5 mm, and the deepest reaches the SMAS, the fibrous layer lifted in a surgical facelift. See HIFU; Ultherapy is one focused ultrasound device, with imaging built in.
Monopolar radiofrequency passes a 6.78 MHz current through the tissue. Its natural resistance turns the current into heat across a volume of dermis and the fibrous septae below it, but not the SMAS. At Atelier this is Thermage FLX, with cryogen cooling of the surface, and the VF Lift – Vertical Facelift, Dr Sin Yong's zone-by-zone protocol on the CLASSYS Volnewmer platform.
Side By Side
The table compares how each works, not whose results are larger.
| Sofwave | HIFU | Monopolar RF | |
|---|---|---|---|
| Energy or mechanism | Parallel, non-focused ultrasound beams with surface cooling | Ultrasound focused to small points at set depths | 6.78 MHz radiofrequency heating a volume of tissue |
| Depth and target | Mid-dermis, about 1.5 mm | 1.5, 3.0 and 4.5 mm: dermis down to the SMAS | Dermis and fibrous septae; not the SMAS |
| Typical sessions | Set by the clinic that offers it | Result judged at about three months; any repeat timed then | Thermage FLX planned as one session; VF Lift sessions set at consultation |
| Comfort and numbing | Surface heat between cooling pulses | A brief deep ache along each line, most over bone; numbing cream | Warmth that builds, paced to your feedback; surface cooling |
| Downtime | Redness, warmth and tenderness that settle | Redness for hours; jaw tenderness for days | Redness and warmth for hours; mild swelling for a day or two |
| When results show | Gradually, as collagen remodels over weeks to months | Collagen response builds over 8–12 weeks | Over weeks to months as collagen remodels |
| Who it suits | Fine lines and dermal firmness where deeper support is good | Laxity at the SMAS level where facial volume is preserved | A slim face that deep heating could hollow, or laxity with fullness |
| At Atelier | Not offered at Atelier | Offered at Atelier | Offered at Atelier (Thermage FLX, VF Lift) |
Which Problem
The energy has to reach the layer that has changed.
Equally, deep SMAS points do little for surface quality unless shallower depths are added. That is why the radiofrequency vs HIFU question is better asked as which layer, not which machine.
Fat thickness matters too: in a thin face, heat placed into scant fat can leave a hollow (see the questions below).
Honest Limits
None of the three adds volume, removes fat, removes excess skin or replaces a surgical facelift. A heavy lower face with much redundant skin is not contracted enough by any of them, and a surgical opinion is the honest next step; what HIFU cannot do covers the same limits for focused ultrasound.
Who should wait. All three are deferred in pregnancy and where there is active infection or inflamed acne in the area. Radiofrequency is avoided with a pacemaker or another implanted electronic device.
Risks set by technique. Redness, warmth and tenderness are common; swelling, bruising or altered sensation occur occasionally. Less often, poor skin contact causes a surface burn, heat irritates a nerve branch, or energy in a thin face reduces fat. Nothing is left in the tissue, so none can be reversed, but a different mechanism can be used later.
How Atelier Decides
At Atelier, Dr Sin Yong looks at the face at rest and in movement, feels skin and fat thickness over each zone, and maps three things: where the dermis has tired, where the SMAS has loosened and where volume is missing. That map decides whether the plan is dermal heating, deep focused points, radiofrequency along vectors, or a sequence of them.
Where a face shows both a lax SMAS and a tired or full dermis, focused ultrasound and radiofrequency can both have a place. Dr SY usually stages them, and the written plan states the order. The fee follows the plan, as how we quote explains.
Worth asking of any tightening treatment: which layer does it reach, what will it not do, and when will the result be judged?
Dr Sin Yong holds a Key Opinion Leader appointment with CLASSYS.
Dr Sin Yong holds a Key Opinion Leader appointment with CLASSYS.
Continue
Atelier Aesthetics · Owned by AYA
9 Scotts Road, Pacific Plaza #12-01A, Singapore 228210 · +65 8023 7170
Book a Consultation