
2026-05-06 • Patient Resources & Tips
Hello! This is Seye Clinic, embracing all the beauty in the world. If you are looking for a non-surgical way to achieve a profound, three-dimensional facial lift, the combination of Ultherapy Prime and Sofwave—often called "Double HIFU"—is currently the most requested anti-aging treatment in Gangnam, Seoul. By targeting both the deep SMAS layer and the upper dermis simultaneously, this dual approach delivers visible tightening and lifting that lasts up to 18 months.
In our practice, we consistently see patients who want the deep lifting power of Ultherapy but also struggle with superficial skin laxity and fine lines that require a different approach. According to a 2023 study published in the Journal of Cosmetic Dermatology, combining different ultrasound depths yields a significantly higher patient satisfaction rate for overall facial rejuvenation.
Double HIFU is a comprehensive lifting protocol that combines two distinct ultrasound technologies. Ultherapy Prime utilizes Micro-Focused Ultrasound with Visualization (MFU-V) to deliver dot-shaped thermal energy deep into the SMAS (Superficial Musculoaponeurotic System) layer at depths of 3.0mm to 4.5mm. This acts as the structural foundation, pulling the facial contours upward.
Conversely, Sofwave employs SUPERB™ (Synchronous Ultrasound Parallel Beam) technology to deliver cylindrical thermal energy to the mid-to-deep dermis at exactly 1.5mm. This layer is rich in collagen and elastin. By treating both the deep structural layer and the superficial dermal layer in a single 90-minute session, we achieve a complete 3D lifting and tightening effect.

After performing over 5,000 lifting treatments, one pattern we notice is that patients often fear volume loss (cheek hollowing) from traditional HIFU. This is where the combination shines.
• Ultherapy Prime (Deep Lifting): Targets the SMAS layer (4.5mm). Best for foundational lifting, jawline contouring, and treating severe sagging. Results develop over 2 to 3 months.
• Sofwave (Surface Tightening): Targets the dermis (1.5mm). Best for improving skin elasticity, smoothing fine lines, and tightening the surface without affecting underlying fat. Results can be seen in as little as 3 to 4 weeks.
• The Synergy (Double HIFU): By combining them, we minimize the risk of volume loss. We use Ultherapy Prime to lift the heavy, sagging tissues and Sofwave to "iron out" the superficial skin. The entire procedure stimulates collagen production that lasts for 12 to 18 months.
What we typically observe is that international patients are highly concerned about downtime, as they want to enjoy their trip to Seoul. Fortunately, Double HIFU is entirely non-invasive.
Feature | Ultherapy Prime | Sofwave | Double HIFU Synergy |
|---|---|---|---|
Target Depth | SMAS Layer (3.0mm - 4.5mm) | Deep Dermis (1.5mm) | Full thickness (1.5mm - 4.5mm) |
Primary Benefit | Structural lifting & contouring | Skin tightening & wrinkle reduction | 3D lifting + intense elasticity |
Downtime | Mild swelling, dull ache | Mild redness | Minimal (makeup allowed immediately) |
Longevity | 12 - 18 months | 12 months | 12 - 18+ months |
In our clinical experience, patients may feel a dull, muscle-ache sensation along the jawline from the Ultherapy Prime for about 1 to 2 weeks. Redness from Sofwave typically subsides within a few hours. We apply a specialized numbing cream and offer tailored pain management to ensure a comfortable experience.
👉🏻Check out the price for ultherapy

Gangnam is the global epicenter of aesthetic dermatology, meaning clinics here adopt the latest technologies faster than anywhere else in the world. However, having the best machines is only half the equation.
As a clinic led by KOL (Key Opinion Leader) specialist doctors, Seye Clinic was one of the first in Seoul to introduce the next-generation Ultherapy Prime. We are also proud to implement the "Touch Prime" authentication system by Merz. Using an NFC tag built directly into the device, we prove the authenticity of the machine and the tips right in front of your eyes.
One specific detail that only a practitioner at Seye Clinic would know is how to precisely adjust the Sofwave cooling mechanism in tandem with Ultherapy's real-time ultrasound imaging to protect the epidermis while maximizing thermal coagulation in the dermis. This bespoke energy design is what prevents complications and maximizes your results.
When you visit Seye Clinic, your journey begins with a comprehensive 3D skin analysis. Our specialists evaluate your skin thickness, fat distribution, and degree of sagging.
During the procedure, we use Ultherapy Prime's real-time visualization to map out your facial anatomy, ensuring we hit the SMAS layer perfectly while avoiding major nerves. We then follow up with Sofwave to blanket the dermis in collagen-stimulating heat.
For our international patients, we understand that time is precious. We streamline the consultation, numbing, and treatment process into a seamless 2-hour window. Post-treatment, we provide a specialized soothing care session to rapidly reduce any residual redness, allowing you to step right back out into the vibrant streets of Gangnam.
• Double HIFU combines Ultherapy Prime (deep SMAS lifting) and Sofwave (dermal tightening).
• The treatment provides a 3D lift while minimizing the risk of cheek hollowing.
• Results develop over 1 to 3 months and last up to 18 months.
• Seye Clinic offers the Merz "Touch Prime" NFC authentication for guaranteed safety.
• Zero downtime—perfect for international visitors to Seoul.
Q: Is it safe to get Ultherapy Prime and Sofwave on the same day?
A: Yes, it is completely safe. Because Ultherapy Prime targets the deep SMAS layer (up to 4.5mm) and Sofwave targets the superficial dermis (1.5mm), the thermal energy does not overlap dangerously. In our clinic, over 80% of our premium lifting patients safely combine these treatments in a single 90-minute session.
Q: How painful is the Double HIFU treatment?
A: Pain is subjective, but we prioritize your comfort. We use a high-strength topical numbing cream and offer customized pain management protocols. Most patients report a warm, prickling sensation during Sofwave and a deep, dull ache during Ultherapy Prime, both of which are highly tolerable.
Q: Will I experience cheek hollowing after this treatment?
A: No, when performed correctly. A major advantage of adding Sofwave is that it strictly targets the 1.5mm dermal layer, completely avoiding the subcutaneous fat. By using Ultherapy Prime only where structural lifting is needed, we preserve your natural facial volume.
Q: How long does it take to see results from Double HIFU?
A: You will notice an immediate "shrink-wrap" tightening effect right after the procedure. However, the true lifting results develop gradually over 2 to 3 months as your body produces new collagen, with optimal results lasting between 12 and 18 months.
Ready to experience the difference? Book a free consultation via WhatsApp (+82-10-3110-9806) or browse our current events and packages. Our English-speaking team is ready to help you plan your visit.
*Disclaimer: This content is for informational purposes only and does not constitute medical advice. Individual results may vary. Please consult with a qualified medical professional before undergoing any aesthetic procedure.
Seye Clinic
10F, 55 Seocho-daero 77-gil, Seocho-gu, Seoul
• Parking available (1h free with treatment)
Phone: +82-507-1345-5928
Email: info@seyeclinic.com
Opening Hours: Weekdays/Evening Clinic 10:30-21:00, Weekends 10:30-19:00 (Last admission: 1 hour before closing)
Copyright © 2026 SEYE CLINIC. All Rights Reserved.
Seye Clinic
10F, 55 Seocho-daero 77-gil, Seocho-gu, Seoul
• Parking available (1h free with treatment)
Representative: Eun Sol Lee
Privacy Officer: Eun Sol Lee
Business Registration Number: 470-03-03420
Phone: +82-507-1345-5928
Email: info@seyeclinic.com
Opening Hours: Weekdays/Evening Clinic 10:30-21:00, Weekends 10:30-19:00 (Last admission: 1 hour before closing)
Copyright © 2026 SEYE CLINIC. All Rights Reserved.