Speaking of which, at the end of last year, I went to Seoul with my best friend. It was her first time getting an ultrasound treatment, so she had already chosen the location and even the clinic—DayOne Dermatology. She asked if I wanted to go with her, and I didn’t hesitate; I said yes right away! So, the two of us loaded up with all the necessary information and took the subway to Jiangnan Station.
DayOne Clinic has two locations on Jiangnan Avenue: the main branch is on the 5th floor of the Dayuan Building, while the Jiangnan Station branch is on the 4th floor of the Hansung Building. It only takes about five minutes to walk between them, and each branch is led by a different chief physician. We went to the main branch; right after exiting Exit 10 of Jiangnan Station, you can take the elevator at the Line supermarket directly to the 5th floor, so it’s very easy to find.
First, what is the experience like at DayOne’s main branch in Jiangnan?
The overall atmosphere of the clinic is simple and Nordic-style, with white and light blue-gray as the dominant colors. The corridors are spacious, and the waiting areas resemble small cafes, decorated with plants and artistic elements, making it pleasant to wait there. The staff are also very friendly. Since my friend doesn’t speak Korean, they have Chinese-speaking receptionists, so communication is no issue.
It’s worth mentioning that DayOne is more than just an ordinary clinic. In 2025, it received the “MINTlift Award for the Most Cases Performed Nationwide.” This award is based on actual treatment volumes, not some paid promotion.
Second, here are the latest prices for DayOne’s ultrasound treatments and Thermage procedures in Korea for 2026.
What attracts people to Korean dermatology clinics is that, for the same equipment, the prices are often lower than in China, and you can be sure that the machines are genuine and original. DayOne offers a wide range of services; here are the current reference prices:
| Services | Specifications | Korean Won | Converted to RMB (for reference) |
|---|---|---|---|
| US Version of the Ultrasound Knife (Second Generation) | 100 pieces | 500,000 | Approximately ¥2,700 |
| US Version of the Ultrasound Knife for Eye Use | 100 pieces | 540,000 | Approximately ¥2,900 |
| Linearz Korean Version Ultrasonic Knife | 100 pieces | 120,000 | Approximately ¥650 |
| Shurink Universal Ultrasonic Knife | 100 pieces | 120,000 | Approximately ¥650 |
| American Version Thermage | 300 pieces | 1.49 million | Approximately ¥8,000 |
| US version of Thermage | 600 pieces | 2.99 million | Approximately ¥16,100 |
| Oligio Thermage | 300 pieces | 600,000 | Approximately ¥3,200 |
| Oligio Thermage | 600 sessions | 1.2 million | Approximately ¥6,500 |
| Oligio Thermage (for the eyes) | 100 sessions | 270,000 | Approximately ¥1,450 |
| 10therma Thermage | 600 injections | 1.9 million | Approximately ¥10,200 |
All of the above are reference prices; the actual fees will be confirmed by the clinic at the time of booking. If it’s your first time, it is recommended to consult a doctor first to determine the number of injections and the areas to be treated based on the condition of your face.
III. Overview of DayOne Dermatology’s Hyaluronic Acid Injection and Other Treatment Services in Korea
My friend also asked about hyaluronic acid injections in addition to ultrasonic therapy. DayOne offers a wide range of hyaluronic acid treatments, from basic hydration to regenerative therapies, to meet different needs:
| Treatment | Specifications | Korean Won |
|---|---|---|
| Juvelook Blue Bottle Water Glow | 8cc | 770,000 |
| Juvelook Black Bottle Youthful Look Injection | 8cc | 990,000 |
| Lizhu Lan Black Box | 2cc | 400,000 |
| Lizhu Lan Red Box | 2cc | 470,000 |
| Lizhu Lan White Box | 1cc | 270,000 |
| Jojoba Long-Lasting Hydrating Serum | 1cc | 330,000 |
| Salmon-Based Hydrating Serum | 1cc | 110,000 |
IV. The three directors of DayOne Dermatology in Korea each have their own areas of expertise – which one should you see?
The directors of the two DayOne clinics are different and each has their own focus; you should decide in advance which doctor you would like to see before making an appointment.
epresentative director of the Ga
ngnam branch. He graduated from Kyung Hee University Medical School and currently serves as a designated training instructor for MERZ, GALDERMA, and VENUS CONCEPT. In March 2026, he represented South Korea at the Galderma international conference and specializes in hyaluronic acid injections and anti-aging treatments.
of the Gangnam branch. She hold
s a master’s degree in medicine from Seoul National University and Kyung Hee University College of Medicine. She has previously served as the director of the Gangnam Samsung Ramat Hospital and the Oracle Dermatology clinic in Sinnyeongting. Her philosophy is to “always communicate with patients.”
om Kyung Hee University Medical School and has previously been the director of the Cheongtan Clinic. He is a member of the Korean Association of Aesthetic Therapies and the Korean Society of Laser Dermatology and Cosmetology. His approach is to “treat every patient with utmost sincerity.”
V. Some tips before visiting DayOne Dermatology in Korea
- It is not recommended to undergo any other thermal treatments one week before having ultrasound therapy: if you plan to receive two treatments at the same time, make sure to inform the doctors so they can arrange the order and intervals properly.
- It is best to make an appointment 3 to 5 days in advance: DayOne is a well-known clinic in Gangnam, so appointments are particularly difficult to get on weekends and holidays. Please contact them in advance to confirm your slot.
- After the treatment, avoid exposing your skin to direct sunlight immediately: your skin may feel tight and flaky after ultrasound therapy. Make sure to hydrate it and use sunscreen; also, refrain from using saunas or hot springs for at least one week.
- The effects take 1 to 3 months to become fully apparent: The benefits of ultrasound treatment gradually emerge as collagen regenerates, so don’t expect significant changes immediately after the first session.
- How to choose between the American and Korean versions of the ultrasound device: The American version delivers more intense energy and lasts longer, while the Korean versions (Shurink/Linearz) offer better value for money but have milder effects. You might want to try the Korean version first.
VI. Basic Information about DayOne Dermatology & Addresses of Its Two Stores
| Services | Jangnan Main Store | Jangnan Station Store |
|---|---|---|
| 📍 Name | DayOne Clinic Jangnan Main Branch | DayOne Clinic Jangnan Station Branch |
| 📌 Address | 5th Floor, Daewon Building, 437 Gangnam-daero, Sujeong-gu, Seoul | 4th Floor, Hansung Building, 423 Gangnam-daero, Sujeong-gu, Seoul |
| 🚇 Transportation | Exit 10 of Gangnam Station, take the elevator to the 5th floor directly | 3 minutes’ walk from Exit 9 of Gangnam Station |
| 🕐 Hours of Operation | Monday to Friday: 10:30–20:00 | Monday to Friday: 10:30–20:30, Saturday: 10:30–16:00 |
| 💬 How to Book | LINE consultation / Gmail email / One-click reservation through BeautsGO | |
7. How to book a DayOne appointment? You can choose from three methods, and all of them support Chinese language communication.
DayOne provides Chinese-speaking assistance, so booking is not difficult at all. If you haven’t decided what to do yet, we recommend consulting via LINE or email first. List your questions and send them over, as responses are usually quick. If you have made up your mind and are sure about attending, you can use BeautsGO to book directly with just one click, saving you time on back-and-forth communications. You can choose from the three methods below: