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GraysGrays Dermatology
Lifting & FirmingUnder review
Duration
Advised after consultation, depending on area and coverage
Recommended sessions
Number of sessions and intervals advised after consultation
Downtime
Advised after consultation, depending on area and intensity

Dr. Kim Tae-hoon, Medical Director · Reviewed by our medical director

Board-certified dermatologist · review date to be posted

Lefton is a device that uses extracorporeal shockwave energy. The degree and timing of change vary widely by individual, and it does not replace surgery or other lifting treatments. Treatment areas, sessions, and cost need to be confirmed individually after consultation.

01Overview

Lefton Firmness care using extracorporeal shockwave energy

Lefton is a firmness treatment using a device that delivers extracorporeal shockwaves (shockwave energy) to skin tissue.

Duration
Advised after consultation, depending on area and coverage
Recommended sessions
Number of sessions and intervals advised after consultation
Downtime
Advised after consultation, depending on area and intensity
How long it lasts
Varies by individual; advised after consultation

How we approach it

The same device can be run very differently. This is how Grays approaches this treatment.

Lefton is a device based on shockwave energy. We plan it together with RF and focused ultrasound lifting, designing individually how to combine the different energies.

Dr. Kim Tae-hoon, Medical Director · Reviewed by our medical director

02What to expect

Changes over time

It works by delivering short, strong pressure waves from outside the skin into the tissue to provide mechanical stimulation — a different kind of energy from RF or ultrasound, which target heat.

01

Right after treatment

Temporary redness or discomfort may occur in the treatment area.

02

A few days

A phase in which symptoms usually settle naturally. If symptoms persist, please contact the clinic.

03

During the course

As the sessions set at consultation continue, changes in firmness are checked. The degree and timing vary by individual.

04

Progress check

Evaluated together with the progress of any lifting received alongside to decide on further care.

Images are illustrative; actual course varies by individual.

03Device & Technology

Lefton Device

Maker TBC (pending review) · MFDS (Korean FDA) approved (certification documents under verification)

Lefton
Lefton

Extracorporeal shockwave energy

Short, strong pressure waves are delivered from outside the skin into the tissue to provide mechanical stimulation.

Lifting combination design

Planned together with RF and focused ultrasound lifting, which use thermal energy, to design firmness care.

05Before / After

Before & After

Clinical photos. Results vary with skin condition, age and treatment plan. Before-and-after photos are published with the patient's written consent, taken under identical conditions (lighting, angle) and never retouched. Results vary by individual.

06Aftercare

Recovery & care

  1. 01

    Same day

    Temporary redness or discomfort may occur. Do not rub or press hard on the treated area.

  2. 02

    The next few days

    Avoid strong massage or harsh skincare, and moisturize well.

  3. 03

    Sun protection

    If you also received lifting, use sunscreen of SPF30 or higher daily during the collagen regeneration period.

  4. 04

    Progress check

    The next session and any combination are decided after evaluating progress, not on a fixed schedule.

07FAQ

Frequently asked questions

What is Lefton?

It is a treatment that manages skin firmness with a device using extracorporeal shockwaves (shockwave energy). It works by delivering pressure waves from outside the skin into the tissue to provide mechanical stimulation. It is performed on its own or planned together with other lifting treatments.

How are extracorporeal shockwaves different from RF or ultrasound?

The nature of the energy differs. RF and focused ultrasound lifting deliver heat to tissue, while extracorporeal shockwaves use short, strong pressure waves to provide mechanical stimulation to tissue. Which approach suits you, and whether to use them together, is decided after consultation.

Who is Lefton suited to?

We consider it for those who have started to notice reduced skin firmness, or who want to plan firmness care together with RF or ultrasound lifting. If sagging is pronounced, treatment on its own has limits, so we may recommend combining it with other lifting treatments.

Can it also be used for cellulite or swelling, not just firmness?

Which areas and purposes Grays Dermatology applies Lefton to is explained individually at consultation. This page describes it within the scope of firmness care, so if you have other concerns, please mention them at consultation.

Are there cases where I should not have Lefton?

It is not recommended if you have an implanted electronic medical device such as a pacemaker, have infection or wounds in the treatment area, or are pregnant. If you take anticoagulants or have a bleeding tendency, be sure to tell us at consultation.

Does Lefton hurt?

You may feel a sensation of stimulation as shockwaves are delivered, and the degree varies by area, intensity, and individual. Intensity is adjusted while checking your response, and whether anesthesia is needed is advised after consultation depending on the area.

How long does treatment take, and what is the recovery time?

Treatment time and recovery vary with the area, extent, and intensity, so we advise you after consultation. Temporary redness or discomfort may occur in the treatment area.

How many sessions do I need, and how long do results last?

The number of sessions and intervals are decided after consultation, considering your skin condition and any treatments received alongside. The degree of change and how long it lasts vary by individual, so we evaluate your progress and decide together whether to continue care.

Is it also combined with V-RO Advance, Ultherapy, or Thermage?

Yes, it is sometimes planned together with RF or focused ultrasound lifting. This approach designs firmness care by adding shockwave energy to lifting that treats layers with thermal energy. Whether to do them on the same day or space them apart is decided after consultation.

Is there anything to be careful about after treatment?

Do not rub or strongly massage the treated area, and keep up with moisturizing and sun protection. If redness, discomfort, or bruising persists or worsens, please contact the clinic.

How much does Lefton cost, and how do I book?

The cost depends on the treatment area and session plan, so it is confirmed after consultation. Reference prices can be found on the price list on our website. Booking is available via Naver Booking, our KakaoTalk channel, or phone (+82-51-710-1891), and consultations are also available via LINE.

Fees

Pricing depends on area and session plan, and is confirmed after consultation. Reference prices are listed on our fee schedule.

See the fee schedule →
References 5
  1. Approval: Lefton · MFDS (Korean FDA) approved (certification documents under verification)
  2. Manufacturer: Maker TBC (pending review)
  3. Korea MFDS medical device registry — searchable by approval number
  4. Korean Dermatological Association — specialist credential lookup
  5. Reviewed by: Dr. Kim Tae-hoon, Medical Director

Cautions & contraindications

  • Implanted electronic medical devices such as pacemakers or defibrillators
  • Active infection or open wounds in the treatment area
  • Pregnancy (not recommended due to insufficient safety data)
  • If you take anticoagulants or have a bleeding tendency, be sure to tell us at consultation
Summary & comparison
TreatmentTarget layerMain changeDurationHow long it lastsDowntime
Lefton ←Firmness care using extracorporeal shockwave energyAdvised after consultation, depending on area and coverageVaries by individual; advised after consultationAdvised after consultation, depending on area and intensity
Ultherapy PRIMEL4 SMASUltrasound lifting that reaches the SMAS layer40-60 minutes depending on areaTypically 6 months to 1 year (individual results vary)Immediate return to daily life; temporary swelling or tingling possible
ThermageL2 DermisMonopolar RF tightening that rebuilds dermal collagen40-60 minutes depending on areaTypically around 1 year (individual results vary)Immediate return to daily life; temporary flushing possible
Tune FaceL3 Fat layerRF lifting that tunes texture, firmness, and contour together30-50 minutesMaintained over several months (individual results vary)Immediate return to daily life
OligioMonopolar RF tightening with a lighter footprint30-50 minutesSeveral months to 1 year (individual results vary)Immediate return to daily life

Treatments used for the same concern, placed side by side. Which one fits is decided in consultation after the layer is identified.

Reviewed byDr. Kim Tae-hoon, Medical Director · Board-certified dermatologist · review date to be posted

Next step

Wondering if this treatment fits you?

Leave your main concern and request a consultation. Suitability, schedule and fees are confirmed after review.

CallKakaoTalkNaver Booking