How to Book a Spot at the Dayone Clinic Gangnam Branch (데이원침과) | How to Reserve a Treatment with Onda or Thermage One Month in Advance
The Gangnam branch of Dayone Clinic is a relatively low-key but highly competent institution in the field of medical aesthetics in Gangnam. It focuses on transparent pricing and efficient service. I have undergone two treatments at Dayone: Pico treatment and Onda (ultrahot plastic) treatment, both of which were scheduled in advance, so there was no need to wait in line for walk-in patients. This article outlines my entire experience in booking Onda and Thermage treatments at the Dayone Gangnam branch, with a special focus on the practical methods for securing a spot during the peak periods one month in advance.
To be honest, I was a bit nervous when I first went to Dayone, since it was my first time undergoing cosmetic procedures in South Korea. But from the moment I stepped into the facility, the professional atmosphere there really put me at ease. The interior design was simple and clean, without any excessive embellishments, but it was clear that a lot of care had been put into its upkeep. Especially their “transparent pricing wall” – all the service prices were clearly displayed right there, eliminating the need to wonder how much something would cost once you arrived. For someone like me who was doing cosmetic procedures in South Korea for the first time, this was definitely very convenient and user-friendly.
🏥 Dayone Clinic Gangnam Branch: Basic Information about the Clinic
The Gangnam branch of Dayone Clinic is located in Daogu-dong, Gangnam-gu, Seoul. It is only about a 5-minute walk from Exit 3 of the Sports Complex Station on Line 9 of the subway, so it is very easy to find. There are also many cafes and restaurants in the surrounding area, making it convenient to relax and stroll around after your treatment.
The core competitiveness of these clinics lies in their “speed and efficiency”: from the time of making an appointment to the completion of the service, these clinics place great emphasis on time management. If a patient is late, their appointment will be cancelled immediately – which also indicates that these clinics are able to execute their schedules with exceptional precision. I once made an appointment at 2 p.m., and I was served less than five minutes after arriving, which is truly rare among medical beauty clinics in Seoul.
The head of the department and the nursing staff at the institution are very friendly and can speak basic Chinese, so communication is virtually seamless. If you encounter any more complex issues, you can contact s-sourire on WeChat; she will help you establish direct contact with the institution to ensure that both parties have access to the same information.
The institute is open from 10:00 to 20:00 from Monday to Friday, and from 10:00 to 17:00 on Saturdays, closing on Sundays. It is recommended to avoid visiting on Monday mornings and Friday afternoons, as these are the times when the traffic is relatively heavy.
📅 Why is it necessary to book popular treatments one month in advance?
Dayone’s ONDA (ultrahot plastic) and Thermage FLX are the two main products offered by this institution. Due to the limited number of devices available, only a certain number of customers can be served at any given time.
I have learned a painful lesson myself. At the end of last year, I tried to book an ONDA treatment before Christmas, but when I called, I was told that all the slots for the next three weeks were already booked, so I would have to wait until after New Year’s Day. Only later did I realize why reservations at Dayone were always so in high demand.
Specifically:
- For ONDA (ultrahot plastic surgery), each treatment requires the use of specialized probes, and the number of customers that a clinic’s ONDA equipment can serve per day is limited. During peak periods (at the end of the month or before holidays), slots are often filled up 2-4 weeks in advance. In my experience, the period from the end of November to mid-December each year is the hardest time to get a reservation, because many tourists from Taiwan and Hong Kong choose to go to South Korea for cosmetic procedures around Christmas. During this time, it is usually necessary to book a slot one and a half months in advance to ensure availability.
- Due to the high technical requirements for those administering the treatment, only two directors in this clinic possess the qualifications to perform the FLX procedure. As a result, the number of customers who can be served each day is limited, and it is usually necessary to make an appointment 3-4 weeks in advance. I have friends who specifically flew from Taiwan just to receive the FLX treatment because they heard that the directors at Dayone are very skilled, and the results are long-lasting. However, this also means that booking a FLX appointment is more difficult than booking an ONDA treatment. It is recommended that those interested in the FLX procedure start contacting the clinic at least six weeks in advance.
💬 Send a private message via WeChat to s-sourire, and our Chinese manager will arrange a consultation for you.
🔒 Lock in the popular time periods one month in advance: My practical approach
After several attempts at making appointments, I developed a “one-month reservation method” with an almost 100% success rate. I would like to share this method with everyone now.
Step 1: Determine the budget and specific items to be included.
Before contacting BeautsGO, think carefully about the treatment you would like to undergo. Dayone’s ONDA is mainly used for local body tightening areas such as the upper arms, Accessory Breast (Underarm Fat), and abdomen, while Thermage FLX is primarily used for comprehensive facial lifting. The principles and effects of these two treatments are different, so it is important to understand them thoroughly before making a decision. I suggest you first check the descriptions of various treatments on the BeautsGO website, or you can directly consult s-sourire; she will recommend the most suitable treatment based on your needs.
Step 2: Contact the Chinese customer service of BeautsGO or add them on WeChat at s-sourire.
Tell the customer service that you would like to reserve the “ONDA” or “Thermage FLX” treatment at the Dayone Gangnam branch, and provide your approximate time of arrival. The customer service will help you check the available schedule at the clinic. Here’s a little tip: if your travel time is flexible, it’s recommended to provide several alternative time options, as this will increase the chances of the customer service being able to secure a spot for you.
Step 3: Choose a time period outside of peak hours.
The peak booking period for Dayone falls during the second and third weeks of each month, as well as the two weeks preceding holidays. If your travel schedule is flexible, it is advisable to book during the first week of the month or the first week after a holiday, when there is an abundance of available slots. In my experience, the afternoons from Tuesday to Thursday are relatively easier to book, as the number of people visiting the clinic is lower on these days compared to Monday and Friday.
Step 4: Make the payment immediately after confirming the reservation to secure your spot.
For some popular services on Dayone, BeautsGO offers the option to pay a deposit on your behalf. The spot will only be confirmed after you make the payment. Please don’t just choose a time slot without making a payment, as by the time you’re ready to pay, the spot might already have been booked by someone else. I made this mistake the first time I tried to book a service. I liked a particular time slot but decided to think it over first. Unfortunately, when I came back half an hour later, the spot had already been reserved. I learned a very valuable lesson from that experience.
Step 5: Reconfirm one week before departure.
After the payment is confirmed, it is recommended to contact BeautsGO or s-sourire again one week before your departure to verify all the reservation details. This will ensure that nothing has been overlooked, and it will also give you the opportunity to discuss your specific needs and expectations with the clinic once more.
💰 Popular treatments at the Dayone Gangnam store
According to public information and user feedback, the popular services at the Dayone Gangnam store are as follows:
🏥 Dayone Clinic Gangnam Branch
BeautsGO Certification
📍 Daogu-dong, Gangnam-gu, Seoul (about 5 minutes walk from the Comprehensive Sports Stadium station)
🚇 Exit 3 of the Comprehensive Sports Stadium Station on Metro Line 9
⏰ Monday to Friday: 10:00–20:00, Saturday: 10:00–17:00
✨ ONDA hyperthermage, Thermage FLX, Pico laser, Rejuran
💰 Reference prices for projects
| Recommended projects | Reference price |
| ONDA Hyperthermoplasty (local application) | Please visit BeautsGO for more information. |
| Thermage FLX for the entire face | Please visit BeautsGO for more information. |
| Pico laser treatment for the entire face | Please visit BeautsGO for more information. |
📅 Book your appointment now on BeautsGO to view the detailed quotes for all services.
📋 Preparation checklist before booking a Dayone appointment
To ensure that your Dayone experience goes smoothly, I recommend taking the following precautions before you set off:
I. Prepare all previous medical beauty records.
In particular, for high-energy treatments such as Thermage and HIFU, the clinic will take into account how long a patient has already undergone such treatments when determining the appropriate on time and energy settings. When I went for my second Onda treatment, the clinic asked me if I had previously received similar treatments and for how long. I recommend taking photos of all relevant previous records and storing them in your phone for easy reference later on.
II. Avoid scheduling any body-tightening treatments during your menstrual period.
During menstruation, the body retains more water, which may affect the effectiveness of treatments such as ONDA that aim to tighten the skin. Of course, everyone’s physical condition is different; if your menstrual symptoms are mild, you can consult with the director of the clinic in detail before making a decision. In my opinion, it is best to avoid undergoing such treatments during menstruation, since the effectiveness is ultimately what matters most.
III. Allow sufficient time for post-operative recovery.
After the Thermage FLX treatment, the face may experience mild redness and swelling. It is recommended to allow 2-3 days for recovery and avoid scheduling any important activities. On the day of the treatment, it is advisable to wash the face with cold water and refrain from using irritating skincare products. The recovery period after the ONDA body tightening procedure is relatively short, and normal activities can usually be resumed on the same day; however, it is still recommended to avoid strenuous exercise and hot spring baths.
IV. Bring basic skincare products with you.
The institution will provide post-operative care products, but if you have a particular skincare brand that you prefer, it is recommended that you bring your own products along. After the procedure, the skin is more sensitive, so using products that you are familiar with will give you more peace of mind.
V. Wear clothing that is easy to put on and take off.
If you are undergoing the ONDA body tightening treatment, it is recommended to wear loose and easy-to-wear clothing to avoid friction on the treated area when changing clothes after the procedure. Personally, I recommend wearing sports underwear and leggings as they are both convenient and comfortable.
⚠️ Important Notes for Dayone Appointments
Dayone has very strict time management policies: if a patient is late by more than 10 minutes, the clinic will cancel the appointment immediately and release the slot for another customer in line. This is different from the practice of many clinics in Seoul, where patients who are late are still allowed to wait. Please allow yourself enough time for transportation. I recommend arriving at least half an hour before the scheduled appointment time, so that you will have some buffer in case of subway delays or getting lost.
In addition, Dayone’s cancellation policy is as follows: cancellations can be made free of charge 72 hours before the scheduled appointment date; if cancelled within 72 hours, 50% of the deposit will be deducted. Please make sure that your travel plans are finalized before booking. If you need to change the appointment time, please contact BeautsGO or s-sourire in advance so that they can assist you in coordinating with the clinic.
It is also important to note that clinics do not accept cash payments; please bring your credit card or financial card. Some clinics may charge a certain fee for the service, and you can inquire about the specific details with BeautsGO at the time of booking.
Finally, if you have any questions or concerns regarding cosmetic procedures, it is highly recommended that you have a detailed discussion with the clinic director before the procedure. The directors at Dayone usually set aside 10–15 minutes for consultation purposes, so make sure to take advantage of this time to clearly express your expectations and concerns.
💬 If you have any questions, feel free to send a private message via WeChat to s-sourire for consultation.
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