Less Painful “LinearZ”
Everything About HIFU Lifting
Hello.
I am Choi Jun-ho,
director of Mutoel Plastic Surgery.
Mutoel Plastic Surgery Clinic in Yongsan
is staffed not only by board-certified plastic surgeons,
but also by board-certified dermatology
and pathology specialists.
The value Mutoel pursues
is harmonious beauty
that is neither excessive nor artificial.
Mutoel’s philosophy
is to conduct continuous research
for natural beauty.
In this blog post, I would like to introduce
an effective treatment that can help improve
sagging skin and elasticity in a harmonious way.
Today’s subject is
LinearZ lifting.

Firming the deeper SMAS layer of the skin
LinearZ, which can help address the concerns described above,
is a device that uses high-intensity focused
ultrasound (HIFU) to help improve skin elasticity.
Without damaging the skin’s surface,
it delivers thermal energy deep into the skin,
reaching the SMAS layer, the deeper fascial layer.
High-intensity ultrasound energy
reduces stimulation to the skin’s surface
and accumulates heat only at the depth
of the treatment target.
The temperature of the thermal coagulation zone
reaches 60°C to 65°C,
inducing contraction and regeneration
of the skin tissue.
Through the thermal action of powerful high-intensity ultrasound,
skin tissue is coagulated densely,
and as it undergoes contraction,
a firming and lifting effect can be expected.
During this process, collagen is actively stimulated,
which may help restore and smooth out
a disrupted facial contour.

Next-generation lifting that is comfortable even without numbing cream
At Mutoel Plastic Surgery in Yongsan,
board-certified dermatology and pathology specialists
are present in the same facility and provide close, personalized care.
As a result, they have an in-depth understanding
of each patient’s skin structure and histological characteristics.
Through precise histological analysis,
unnecessary stimulation is avoided,
and treatment is provided only to the specific areas that require it.
LinearZ HIFU treatment may also help reduce
the burden of treatment-related pain.
Conventional ultrasound lifting tends to be relatively painful,
and some patients experienced discomfort
even after applying numbing cream.
However, thanks to its “Linear Mode”
and sophisticated control system,
the LinearZ device is known to involve relatively less discomfort.
Treatment may be comfortable enough to receive
without separate topical anesthesia,
making it highly preferred by many busy modern individuals.
However, whether anesthesia is used may vary depending on the patient’s condition,
so please be sure to confirm this in advance.

Synergy between two modes: Dot and Linear
The LinearZ device is equipped with a highly distinctive cartridge
that can deliver energy in two different ways.
These are the conventional “Dot Mode,”
which delivers energy in dot-shaped points,
and “Linear Mode,”
which delivers energy broadly and evenly in lines.
In the basic Dot Mode,
thermal coagulation zones in tiny dot shapes
are formed beneath the skin at regular intervals,
making it effective for targeting fat cells
located at a specific depth.
It is therefore applied with great precision
to areas requiring appropriate contour reduction,
such as fat accumulated beneath the chin
or sagging lower cheek fat.
By contrast, Linear Mode delivers energy
in closely spaced lines,
distributing it very evenly without leaving gaps.
It also enables gentle heat transfer,
and may provide satisfactory results
for improving elasticity in areas with thin skin,
such as around the eyes or mouth.

One-touch adjustment across multiple depths and prevention of cheek hollowing
Older lifting devices delivered shots one at a time,
so small spaces or tiny gaps inevitably occurred
between the dots.
However, when this innovative Linear Mode,
which uses a linear delivery method, is applied,
the spacing between dots is 0 mm,
allowing energy to fill the area densely without gaps.
Because powerful thermal energy is delivered
evenly and uniformly across the designated skin area,
as though being applied over the surface,
it may help improve the precision of the treatment.
At the same time, the device is equipped with a self-detection sensor function
that prevents energy from overlapping
and being delivered abnormally,
designed to help reduce the possibility of side effects.
By preventing unnecessary repeated delivery,
it aims to further reduce concerns about
possible skin damage, burns, and other side effects.
Most notably, the ability to precisely adjust
multiple target depths with a single cartridge
is also an impressive technical feature.
With other devices previously used,
the cartridge had to be inconveniently replaced
during treatment to adjust the target depth
at which energy was delivered.
However, thanks to this device’s unique
multiple-depth adjustment system,
it can be controlled very simply
with a convenient one-touch operation.
Without replacing the cartridge each time,
the desired thermal energy can be delivered
from the key target layers of the skin—
starting with the “superficial dermis,”
through the “subcutaneous fat layer,”
and down to the deepest “SMAS fascial layer.”

In conclusion..
At Mutoel Plastic Surgery in Yongsan,
board-certified plastic surgery and dermatology specialists
with years of clinical experience provide consultations tailored
to each individual’s face and closely analyze their skin condition.
Rather than simply delivering high-energy shots
through a mechanical, factory-like approach,
we prioritize harmony with each patient’s natural facial contours
and carefully design treatment with dedication.
For natural beauty that does not look obviously treated or artificial,
but instead appears subtly younger and more supple,
we devote our full attention to every detail.
Mutoel will always be by your side,
listening carefully to the concerns of our valued patients
and consistently sharing only balanced and sound medical values.
If you have any other questions regarding LinearZ,
please feel free to contact us at any time.
This has been Choi Jun-ho,
director of Mutoel Plastic Surgery.
Thank you.






