Powerful Linear-Type Ultrasound Lifting

Tune LinearFirm

Seamless firmness, drawn line by line

Linear-type focused ultrasound that delivers even energy from the upper dermis to the SMAS layer — feel a naturally visible change.

Tune LinearFirm Focused Ultrasound Lifting
Jeisys LinearFirm device

Pricing confirmed at in-person consultation

Includes Physician Assessment

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Tune LinearFirm ultrasound lifting device at Apgujeong Tune Clinic, Seoul

Why Patients Trust Tune

A physician plans and performs every treatment.

No brokers. No commissioned referrals. Every booking begins with a doctor on the Tune medical board — the same people accountable for your result.

A Named Board

American Board of Aesthetic Medicine · Clinical Professors of Plastic Surgery (Yonsei) and Medicine (Chosun) · Director, Korean Stem Cell Society.

Where You'll Be

Apgujeong, Seoul — between Apgujeong Rodeo and Sinsa stations, in Korea's most-searched aesthetic district.

An Honest Plan

Your plan is confirmed in person before anything begins. Outcomes and suitability vary by individual — we tell you when a treatment isn't right for you.

Meet the medical board

Method

Linear-type focused ultrasound (HIFU)

Depth Range

Upper dermis to SMAS layer

Pain / Recovery

Reduced pain, return to daily life right away

Tune Clinic's LinearFirm

What Is LinearFirm?

LinearFirm is an ultrasound lifting treatment built on the Jeisys LinearFirm device. It uses focused ultrasound energy, whose thermal action coagulates tissue and contracts the skin.

By forming coagulation zones at various skin depths — the upper dermis, mid dermis, lower dermis, and the muscle-fascia (SMAS) layer — it naturally induces collagen production, so you can expect elastic lifting and improvement of facial wrinkles.

Category Focused ultrasound (HIFU) lifting

Device Jeisys LinearFirm

Cartridge Types Dot & Linear (13 types total)

Depths 1.5 / 2.0 / 3.0 / 4.5 / 9.0 / 11.0 / 13.0 mm

Certification MFDS approved & EU CE certified

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How the Treatment Works

Using the thermal action of focused ultrasound energy from the transducer to coagulate tissue — for a lifting effect.

Step 01

Focused ultrasound energy is delivered into the skin.

Step 02

Thermal coagulation zones form where the energy reaches.

Step 03

Tissue coagulation and skin contraction occur.

Step 04

The treated area is tightened.

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Linear Firm Effect

Linear Type

A linear type that leaves fewer gaps, allowing treatment across wide areas.

6 Cartridge Types

Six different cartridges reach a range of layers within the skin.

Treats Various Areas

From small areas such as the eyebrows to wide areas such as the thighs.

Back to Daily Life

Simple anesthesia and almost no pain, so you can return to daily life right after treatment.

Quick, Decisive LinearFirm Lifting

Double-chin improvement Fine-wrinkle improvement Skin-tone improvement V-line contour Tightening effect

Why Patients Choose LinearFirm

Lifting With Few Gaps, Thanks to Linear-Type Cartridges

Point 01

Two types of ultrasound cartridge — matched to the area and condition

You can choose between the Dot type and the Linear type. The Dot (point) cartridge can be adjusted to a gap of 1–2 mm, while the Linear cartridge has a 0 mm gap between points, so energy is delivered evenly with fewer gaps.

Point 02

Precise energy delivery from the epidermis to the SMAS layer

With 13 cartridge types, energy can be delivered precisely by skin layer, forming coagulation zones at a range of depths for effective lifting. A matched cartridge can treat wide areas such as the thighs as well as narrow areas such as the eyebrows.

Point 03

A lifting method with reduced pain

A lifting method that allows for a quick session with reduced pain — generally to a level that does not require anesthetic cream — so it can be received comfortably, with a fast return to daily life.

Point 04

A certified, stable method

Built on a device that has completed domestic MFDS approval and European CE certification, so you can expect a stable, systematic result. (Certifications include 2020 Europe, 2019 Israel, 2018 Australia, and 2018 Taiwan.)

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Recommended For

Those who worry about pain during a lifting treatment.

Those who want to improve the elasticity of the face and body.

Those who want lifting and brightening results together.

Those who want to improve fine wrinkles or a double chin.

Those whose skin tone is uneven and blotchy.

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LinearFirm Q & A

What makes the linear-type cartridge different from a dot type?

A dot (point) cartridge places energy points with an adjustable 1–2 mm gap, while a linear cartridge has a 0 mm gap between points. This means fewer gaps and more even energy delivery over the treated area. Individual results vary.

Which depths and areas can LinearFirm treat?

With 13 cartridge types in Dot and Linear forms across depths of 1.5, 2.0, 3.0, 4.5, 9.0, 11.0 and 13.0 mm, LinearFirm can deliver energy precisely from the epidermis down to the SMAS layer. It can treat wide areas such as the thighs as well as small areas such as the eyebrows using a matched cartridge.

Is the treatment painful, and is downtime needed?

LinearFirm is designed to reduce pain to a level that generally does not require anesthetic cream, and you can return to daily life right after the session. Pain perception and recovery vary by individual.