Ultherapy System

The Ultherapy System is a micro-focused ultrasound platform developed by Ulthera and now part of Merz Aesthetics. It is used within Kaiteki's Ultherapy treatment for non-surgical lifting of the brow, lower face and neck, and for lines on the décolletage. Like other focused-ultrasound devices, it passes energy through the skin surface and concentrates it at a chosen depth beneath, so the layer being heated is deeper than the layer the transducer touches.

The feature that separates it from the rest of the category is imaging. Merz refers to the technology as micro-focused ultrasound with visualisation (MFU-V), because the same transducer that delivers energy also produces a live ultrasound image of the tissue beneath it, through what the manufacturer calls DeepSEE® imaging. That means the doctor can see the tissue planes on screen before energy is delivered rather than working from external landmarks alone. Whether it is appropriate for your face, and where the energy should go, is determined by a doctor at an in-person consultation.

Energy is focused to very small points at set depths, producing discrete zones of controlled heating that prompt a tissue-repair and collagen-remodelling response over the following months. The intervening tissue and the skin surface are not the target, which is why there is no wound to heal afterwards.

The imaging is the practical difference during the session. The current Ultherapy PRIME generation adds a larger screen and a faster image refresh, and Merz lists the face, neck, décolletage, abdomen and arms among the areas it is indicated for. This does not make imaging-free HIFU devices unsuitable (they are well established and are chosen for good reasons), but visualisation does let the doctor confirm depth and avoid structures such as bone and dense fascia before each line. Transducer choice, depth and line count are decided by the treating doctor, and any change develops gradually and varies between individuals.

Merz describes DeepSEE transducers that treat at three depths (approximately 1.5 mm in the superficial dermis, 3.0 mm in the deeper dermis and 4.5 mm at the level of the SMAS fascia), so the doctor can choose the layer rather than treating one fixed plane. The SMAS (superficial muscular aponeurotic system) is the deeper support layer of the face: the same layer a surgical facelift addresses, though focused ultrasound reaches it without incisions.

The manufacturer states that the system visualises tissue to a depth of around 8 mm, which is what lets the doctor confirm the plane on screen before each line is delivered.

No. It reaches some of the same deeper tissue a surgical facelift addresses, but it does not cut, lift or remove skin, and the degree of change is not comparable to surgery. If your laxity is advanced or there is significant excess skin, your doctor may say honestly that a non-surgical option is unlikely to achieve what you have in mind.

Ultherapy is commonly considered where the concern is laxity and loss of definition rather than surface texture or pigment. It is not suitable for everyone, and a consultation determines whether it is appropriate for you.

Micro-focused ultrasound is absorbed by tissue rather than by melanin, so it is generally used across the full range of skin tones, including deeper Asian skin, without the pigment-related risk profile of some lasers. It tends to suit people with mild to moderate laxity who still have reasonable skin quality.

It may not be suitable during pregnancy or breastfeeding, over active infection, open wounds or significant inflammatory acne in the treatment area, or where implants, metallic or electronic devices such as pacemakers, or recently placed fillers or threads lie in the intended path. Keloid tendency, bleeding disorders, certain medications and some autoimmune conditions also need to be weighed. Please share your full medical history and previous aesthetic treatments at consultation.

A visit begins with a doctor consultation and an assessment of how your laxity is distributed, since this treatment is planned area by area rather than applied uniformly. If Ultherapy is appropriate, the skin is cleansed, treatment zones are marked on a grid, and coupling gel is applied. The doctor then places the transducer, checks the tissue image on screen to confirm the plane, and delivers a line of micro-focused pulses; this is repeated line by line across the mapped area.

Most people describe brief deep prickling, heat or tingling with each line, felt more strongly over bony areas, with the sensation ending as soon as the pulse does. Comfort measures can be discussed beforehand. A face and neck session commonly takes in the region of 60 to 90 minutes. It is often planned as a single session with a review a few months later once the tissue response has had time to develop, with maintenance considered periodically rather than on a fixed schedule.

There is usually no wound and no dressing, and most people return to normal activities the same day. Mild redness, slight swelling, tenderness to touch, or a temporary firm or lumpy feeling under the skin can occur and generally settle over days to a few weeks, though this varies between individuals.

Gentle skincare and daily sun protection are advised, and your doctor may ask you to avoid strenuous heat exposure for a short period. Aftercare guidance is given specific to the areas treated.

As with any medical procedure, Ultherapy carries risks, which are explained during consultation. Temporary effects can include redness, swelling, tenderness, bruising, welts, or transient numbness or tingling in the treated area; less commonly, temporary nerve-related effects such as localised muscle weakness or altered sensation have been reported with focused-ultrasound treatments. Serious effects are uncommon when the treatment is appropriately selected, carefully mapped and performed by a trained doctor.