
Sofwave in Seoul: how the device works and what the evidence shows
Written by the Delight Dermatology editorial team · Medically reviewed by Lead Dermatologist, Delight Dermatology Clinic (Korean Board-Certified Dermatologist, AAD International Fellow, ASLMS) · Last reviewedSofwave is a non-invasive skin-tightening device built on SUPERB (Synchronous Ultrasound Parallel Beam) technology and made by Sofwave Medical Ltd. Seven transducers fire together, delivering high-frequency, non-focused ultrasound to a fixed depth of about 1.5 mm in the mid-dermis, while contact cooling protects the surface. The US FDA cleared the system for eyebrow, submental and neck lifting on 15 November 2021 under K211483. This site is a reference on how the device works, who it suits, what a session costs in Seoul, and what the published evidence does and does not support. It is written and medically reviewed by Delight Dermatology Clinic in Gangnam, Seoul, where the treatment is performed.
This is the specialty information surface for Sofwave at Delight Dermatology Clinic, a Korean dermatology practice in Gangnam, Seoul. It exists to answer the questions international and Seoul-based patients actually ask before booking: what the device physically does, who it suits, how it differs from microfocused ultrasound, what a session costs in Seoul, what the days afterwards look like, and who the treating clinician is. Consultations and bookings are handled by the parent clinic Delight Dermatology in Gangnam, Seoul, which operates this site.
Sofwave in one paragraph
Sofwave is a non-invasive ultrasound device made by Sofwave Medical Ltd. Unlike microfocused ultrasound, which concentrates energy into small points at selectable depths, Sofwave delivers seven parallel, non-focused beams that heat a continuous band of the mid-dermis at a single fixed depth. The published clinical reports place the frequency at 10–12 MHz and the treated zone at roughly 60–70 °C, which is the range associated with controlled collagen denaturation and the wound-healing response that follows. The epidermis is protected by contact cooling and a real-time skin-temperature monitor rather than by aiming the energy around it. Full device parameters are on the what is Sofwave page.
Why a separate Sofwave site
Delight Dermatology Clinic runs a wide general dermatology menu — acne, pigmentation, lasers, injectables, body procedures. That breadth is useful clinically but it dilutes the signal for someone who has already narrowed the question to one device. This site is deliberately narrow: Sofwave in Seoul, the candidacy questions specific to mid-dermal ultrasound, Seoul pricing in KRW with a USD reference, and an honest comparison with the microfocused-ultrasound alternative. The clinic runs the same kind of dedicated site for Ultherapy and for Thermage, each covering its own device in equivalent depth.
About the treating clinician
Sofwave at Delight Dermatology is performed under the direction of a Korean Board-Certified Dermatologist who is also an AAD International Fellow and an ASLMS member, with active membership in nine Korean dermatology societies and a prior role as senior dermatologist at Banobagi before establishing the current practice. The clinic operates under medical institution registration 357-15-02460. Full credentials, and the explicit list of claims the clinician does not make, are on the about page.

Why patients come to Seoul for energy-based treatments
Seoul offers access to clinics that operate several energy-based modalities side by side, which makes a genuine comparison possible in one consultation rather than across three. City-level device availability does not by itself prove any individual clinician's experience or treatment volume, so it is worth verifying the treating clinician's credentials, that the device is the authentic manufacturer system, and what the proposed pulse count and treatment areas actually are before agreeing to a plan. The clinic's own Sofwave treatment page at Delight Dermatology states the protocol it uses.
What a consultation looks like
International patients can start with a general enquiry and no photograph. If you choose a photo-based preliminary review, you may optionally share a no-makeup front and side photograph and relevant prior treatment history over WhatsApp, Line or KakaoTalk. That can support an initial discussion, but the in-person examination is what confirms candidacy, the treatment areas, the pulse count and the final plan. Allow roughly 30 to 60 minutes for the treatment itself, depending on how many areas are included.
Where Sofwave fits, and where it does not
Sofwave suits mild to moderate laxity and textural change in people who want a single-session, low-downtime treatment and are willing to wait months for the result to develop. It does not substitute for a surgical lift when laxity is advanced, it does not remove fat, and it does not erase deep static folds. Where the laxity is deeper than the mid-dermis, microfocused ultrasound or a surgical consultation may be the more honest answer — which is the reason the comparison page exists rather than a sales argument. The candidacy page sets out who is screened out and why.
Published references
The clinical statements on this page reflect the published literature on synchronous parallel-beam ultrasound of the mid-dermis. Citations below are primary or review sources; PubMed identifiers link to abstracts. Where an author group includes device-manufacturer employees, that affiliation is noted in the entry.
- Hongcharu W, Boonchoo K, Gold MH. The efficacy and safety of the high-intensity parallel beam ultrasound device at the depth of 1.5 mm for skin tightening. Journal of Cosmetic Dermatology. 2023;22(5):1488–1494. PubMed · doi:10.1111/jocd.15672
- Gold MH, Biron J. Efficacy and safety of high-intensity, high-frequency, non-focused ultrasound parallel beams for facial skin laxity. Journal of Cosmetic Dermatology. 2024;23(1):117–123. PubMed · doi:10.1111/jocd.16098
- Liao D, Prasad A, Bloom JD. Use of ultrasound in face and neck rejuvenation. Facial Plastic Surgery. 2026 (online ahead of print). PubMed · doi:10.1055/a-2854-6601