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뮤토엘성형외과의원 · 뮤토엘성형외과의원 · June 30, 2026

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 bo...

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This page is an English translation of a Korean Naver Blog archive entry. For exact wording and source context, verify against the Korean archive original and the original Naver post.

Clinic: 뮤토엘성형외과의원

Original post date: June 30, 2026

Translated at: August 17, 2026 at 2:27 PM

Medical note: This translation does not guarantee medical accuracy or suitability for treatment decisions.

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.

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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.

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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.

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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.

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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.”

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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.

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