To be honest, when many people consider going to South Korea for cosmetic procedures for the first time, the biggest psychological barrier is not the cost or the flight itself, but rather the worry of “what if I can’t communicate?” Have you ever imagined that awkward situation: standing outside a clinic, typing sentence by sentence using Google Translate, only for the nurse on the other side to remain completely confused? With Onecell Dermatology, such a scenario is virtually impossible to happen.
Let me help you sort it all out from start to finish: how to use BeautsGO to book an appointment at Onecell, which branch to choose, and what you need to prepare before going. Additionally, we’ve compiled 10 frequently asked questions to answer all your most common doubts. After reading this article, booking an appointment at Onecell will be a simple task that you can complete tonight itself.

How to make an appointment at Onecell Dermatology through BeautsGO: A step-by-step guide that takes just 5 minutes
BeautsGO is a South Korean Dermatology appointment platform specifically designed to serve overseas travelers. It offers a Chinese-language interface, customer service support, and the ability to switch between traditional and simplified Chinese characters, making it ideal for users from Taiwan, Hong Kong, Singapore, and other regions. Onecell Dermatology has a comprehensive profile page on BeautsGO, which includes information about its various clinics, details about popular treatments, and available appointment times – all without the need for you to browse the official South Korean website.
Step 1: Download and open the BeautsGO APP.
BeautsGO is available for both iOS and Android devices. You can search for “BeautsGO” on the App Store or Google Play and download it directly. Upon opening the app for the first time, you will be prompted to select a language; simply choose Traditional Chinese. The app’s interface is very clean and user-friendly, with a search bar on the home page. Enter “Onecell” and all relevant stores will immediately appear.
Step 2: Select a branch and treatment plan
At present, Onecell has several branches in Seoul. On the BeautsGO website, each branch is provided with independent information, including address, subway exit, photos of the clinic, and a list of available treatments. It is recommended that you choose a branch based on your location. If you are staying near Hongdae, opt for the Hongdae branch; if you are in the Myeongdong or Dongdaemun area, choose a branch located in those areas to save on travel time.
The treatment page includes Chinese descriptions, such as the name of the treatment, the suitable skin types, the approximate time required, and the price range (displayed in Korean won, KRW). You can add it to your favorites list first and submit your reservation only after you have made up your mind; there is no need to confirm it immediately.
Step 3: Select the date and time slot
Once you click on the treatment page, the system will display the available appointment dates. Dates that are available will be highlighted in color, while those that are already booked will appear in gray. After selecting a date, you can then choose the time slot, which is usually either 30 minutes or 1 hour, depending on the type of treatment. If you have a particular preference for a specific time slot—for example, if you only want to schedule your appointment in the afternoon because you want to sleep in in the morning—you can mention this in the remarks section. The BeautsGO customer service team will help you confirm whether the clinic can accommodate your request.
Step 4: Fill in basic information
The information required to fill out the reservation form is quite simple: name (the English name on your passport), contact phone number (you can simply use your Taiwanese mobile number; there is no need for a South Korean number), whether you have any special skin conditions or a history of allergies (optional), and any additional requirements you would like the clinic to know in advance (for example, “I am allergic to a certain ingredient” or “I would prefer if the doctor could speak slowly in basic Korean”).
Important note: Please provide your Taiwan mobile phone number or your LINE/WhatsApp account when filling in the contact information. The customer service team at BeautsGO will contact you via private message in Chinese to confirm your reservation. There is no need at all to answer calls from South Korea.
Step 5: Wait for the confirmation notification.
After submitting your reservation, the BeautsGO backend will coordinate with the Onecell clinic to check the available schedule and available slots for that day. You will generally receive a confirmation within 24 hours (on weekdays). The notification will be sent to your account via both APP push notifications and messages, informing you whether the reservation has been successfully confirmed or offering alternative appointment times for you to choose from. Only after receiving the confirmation message will your reservation be officially confirmed.
Step 6: Confirm everything before setting off
It is recommended to check the reservation status again 48 hours before departure through the BeautsGO APP. You can also confirm the details via the app’s chat function or by contacting customer service: which day, at what time, which branch, and which exit. On the day of your arrival in Seoul, please arrive at the clinic 10-15 minutes in advance. Show the staff the screenshot of your reservation from the BeautsGO APP at the reception, and they will be able to find your information immediately, eliminating the need for you to state your name in Korean.
How to choose a branch of Onecell Dermatology? A detailed analysis of Hongdae, Gangnam, and Myeongdong.
Currently, Onecell has several locations in Seoul, all situated in the city’s main commercial districts. The size of these stores, the treatments they offer, and the foot traffic they receive vary to some extent; choosing the right branch can save you a lot of trouble. Below are some highlights of their main branches:
Hongdae Store
The Hongdae store is Onecell’s most well-known venue among the younger generation. It is located near the Hongdae subway station; it only takes a few minutes to get there after exiting the station. This area itself is one of Seoul’s most vibrant and trendy spots for young people, with numerous cafes and restaurants in the vicinity. After undergoing any cosmetic procedures, it’s extremely convenient to simply go shopping or have a coffee nearby.
The Hongdae store specializes in “quick-treatment” procedures such as skin management, hyaluronic acid injections, and microneedling, which are short in duration and highly efficient. These treatments are ideal for travelers who are busy with their schedules and want to achieve their beauty goals in just 1-2 hours.
The atmosphere here is more relaxed; it’s more like an “upgraded version of a skin spa” than a serious medical institution. Beginners who are experiencing South Korea’s Dermatology services for the first time would be best to start here.
Gangnam Store
If you have a relatively generous budget and are considering advanced treatments such as Thermage, Ultraformer HIFU, or Titanium Lifting, the Gangnam branch is the better choice for you.
Gangnam is the district in Seoul with the highest concentration of medical beauty clinics. The Onecell Gangnam branch also targets a higher-end market, offering more comprehensive equipment and doctors with greater experience in performing complex treatments. Geographically, it is conveniently located near the Gangnam or Sinnonhyeon subway stations, making it much easier to schedule consultations at multiple clinics before making a decision.
Stores near Myeongdong/Chungwu-ro
The largest number of tourists stay in Myeongdong, so the branch located here is ideal for those who come primarily for tourism and would like to take care of their basic skin care needs in the process. Within walking distance of the Myeongdong shopping district, there are large duty-free shops and department stores, making it very convenient to shop immediately after treatments such as hyaluronic acid injections or cleansing procedures.
It is not suitable for treatments that require a long duration or have a lengthy recovery period. Since there are many people in the area around Myeongdong during the day, the chances of walking on the streets are quite high, and it can be rather embarrassing to walk around in the street immediately after undergoing laser treatment or any procedure that causes noticeable swelling.

Things you must know before visiting Onecell Dermatology: Popular treatment options + Super detailed FAQ
The 5 most popular treatments at Onecell
Based on the number of reservations and user reviews on BeautsGO, the following 5 treatments are the most popular among Taiwanese tourists at Onecell:
- LDM Water Lifting: This treatment has been very popular for some time. It uses high-frequency ultrasound to deliver Filler and essence deep into the skin, instantly making it hydrated, radiant, and glossy. There is no need for a recovery period after the treatment; you will leave the clinic with a skin that looks as if you’ve just drunk plenty of water and had a good night’s sleep. This treatment is especially suitable for when your skin becomes very dry after a long flight. The cost ranges from approximately 300,000 to 600,000 Korean won, depending on the combination of treatments chosen.
- Potenza: Extremely fine microneedles are used in combination with radiofrequency energy to stimulate the production of Collagen, effectively addressing issues such as enlarged Pores, uneven skin tone, and mild depressed acne scars. Slight pinpoint bleeding is normal; the skin may appear red on the day of the treatment, but this usually subsides by the next day. The cost ranges approximately from 500,000 to 800,000 Korean won.
- Rejuran Hydrating Injection (Juvederm Volite): This is an injectable form of hydration treatment that directly delivers Filler into the dermis. The moisturizing effects last for 6 to 12 months, making it far more effective than topical skincare products. Onecell uses genuine Rejuran; in Taiwan, products with the same ingredients cost at least twice as much. The cost ranges from approximately 450,000 to 600,000 Korean won.
- HIFU (Ultraformer III): The mainstream choice for non-invasive lifting treatments. It uses focused ultrasonic waves to directly target the SMAS layer, stimulating tightening and lifting effects. Several months after the procedure, a gradual sense of lifting can be observed. This treatment is suitable for those with sagging jawlines, loose cheeks, or early signs of neck wrinkles. The cost is calculated based on the number of treatment points; for the entire face, it generally ranges from 1.3 to 2 million Korean won.
- Skin Care Package: Cleansing and Introduction + Ultrasound Introduction + High-Frequency Tightening + LED Glow Therapy. This package is especially suitable for those who are new to this industry and aren’t sure what treatment to choose. The entire procedure takes approximately 1 to 1.5 hours. After the treatment, the skin will be clean and glowing, and no recovery period is required. The cost ranges from 200,000 to 350,000 Korean won. Many people consider this package as an “entry-level option” and decide whether to upgrade to more advanced treatments later on.

FAQ: 10 of the most frequently asked questions, answered all at once
Q1: Is it necessary to make a reservation through BeautsGO? Can I just go in directly?
Technically, it is possible to walk in without making an appointment, but we strongly do not recommend it. Onecell is extremely popular, especially on weekends and during peak hours, so the clinics are usually fully booked. Waiting for an hour or so just by walking in is quite common, and you also don’t have any guarantee that the doctor you end up seeing will be the one you want. The greatest advantage of using BeautsGO for booking is that you can confirm everything in advance before you arrive. Upon arrival, you can simply report to the clinic, and everything – the time, the clinic, and the treatment plan – will be accurately arranged for you.
Q2: Do I need to pay a deposit when booking through BeautsGO?
Depending on the treatment plan and the policies of the clinic, some high-value treatments (such as Thermage and HIFU) require a small deposit to ensure the validity of the reservation. The deposit usually amounts to 10-20% of the total treatment cost and can be paid online using a credit card. For most basic skin care treatments, no deposit is required. When you place a reservation on BeautsGO, the system will clearly inform you whether a deposit is needed, so there will be no hidden fees.
Q3: What documents do I need to fill out when I visit the clinic?
You will need to fill out a basic consultation form, which will include questions about your skin condition, any previous history of cosmetic procedures or plastic surgery, current medications you are taking, and whether you have any special allergies. Onecell provides both Chinese and English versions of the consultation form, so you don’t have to worry about understanding the Korean options. If you have any special circumstances (such as having recently received other types of fillers, taking retinoids, or having a tendency to develop keloidal scarring), be sure to inform the doctor truthfully. This is not meant to result in any negative consequences for you; rather, it is important for the doctor to make the safest treatment plan for you.
Q4: What about the language used during doctor consultations?
Onecell provides dedicated Chinese translation services. When making a reservation through BeautsGO, simply indicate “Need Chinese service,” and the clinic will arrange the appropriate communication method. There are usually three options: ① The clinic’s own Chinese translators accompany the patient throughout the process; ② BeautsGO’s customer service staff acts as translators (through real-time mobile communication); or ③ The doctor explains in Korean while a translator provides simultaneous interpretation. Any of these methods will be much more convenient than using Google Translate on your own.
Q5: Do I need to pay the fees on-site at the clinic? Can I use a credit card?
The fees are paid on-site at the clinic. Onecell accepts international credit cards such as Visa and Mastercard, or cash (South Korean won). It is highly recommended that those who choose to pay in cash or by local transfer in South Korea bring enough South Korean won with them. Also, make sure to request a receipt for each transaction, as some medical expenses in Taiwan are deductible for tax purposes. When using a credit card, be aware of the overseas transaction fees, which usually range from 1.5% to 2%. For high-value treatments, this fee can be quite substantial. Additionally, South Korean medical expenses are subject to an additional 10% VAT. The prices displayed on BeautsGO are typically before tax, so remember to add this amount when calculating the total cost.
Q6: Can I take a flight on the same day after undergoing medical beauty procedures?
It depends on the treatments you have undergone. Procedures such as pure glow treatments, skin care, and LED therapy generally require no recovery time, so it’s completely safe to fly on the same day. However, if you have had laser treatments, Potenza sessions, exfoliating procedures, or injections like Botox or Filler, it is advisable to stay in Seoul for an extra day after the treatment. This will allow your skin to stabilize before being exposed to the low humidity and pressure in the airplane, which can be detrimental to newly treated skin. It is recommended that you inform the BeautsGO customer service in advance about the date of your return flight and ask them to recommend suitable treatments that can be done on the same day or the previous day.
Q7: What should I do if the doctor on-site says that I am not suitable for this procedure?
Although such cases are not common, they do exist. For example, if your skin is experiencing severe inflammation on the day of the treatment, or if you have any contraindications, it would be the most responsible approach for the doctor to recommend that you opt for another treatment plan or postpone the procedure. If you book through BeautsGO, in such situations, you can usually get a free rescheduling at another time, and the deposit you have paid can be deducted or refunded, so you don’t have to worry about any losses.
Q8: Which one is more recommended, Onecell or Cellin?
The positioning of the two brands is somewhat different. Onecell is more like an “urban clinic” that emphasizes a technological approach, focuses on efficient skin care, and offers a glowing complexion, making it particularly suitable for short-term travelers. Cellin, on the other hand, is known for its injectable beauty treatments, lifting procedures, and customized services, and is ideal for users with higher budgets who are willing to spend more time on comprehensive consultations. If your stay in Seoul is only 2-3 days, Onecell is the better choice; if you plan to stay for more than 5 days and want to undergo a thorough series of medical beauty treatments, Cellin should also be considered. Both brands are available for reservation on BeautsGO, and you can easily compare their reviews and prices directly through the app to determine which one suits you best.
Q9: Is it convenient for men to undergo cosmetic procedures at Onecell?
It’s extremely convenient. Onecell already serves male customers, and “men’s skin care” is a completely normal demand in Seoul – you definitely won’t encounter any strange looks. Common treatments for men include Pores management, sebum control, skin tone brightening, and many men also use HIFU to improve the contours of their faces. The front desk staff are also accustomed to serving male clients, so there’s no need to worry.
Q10: Can we trust the reviews on BeautsGO?
BeautsGO has a review verification system in place, ensuring that only users who have actually completed their appointments are able to leave reviews. This helps to filter out fake ratings to some extent. Of course, reviews still contain subjective elements, so it’s recommended that you read multiple reviews. Pay special attention to three key aspects: whether the consultation and communication process was smooth, descriptions of the results after the treatment, and any complaints about hidden fees. These three aspects directly reflect the quality of the clinic’s services. Overall, clinics with ratings of 4.5 or above on BeautsGO generally offer a basic level of service quality.
Pre-departure Checklist: If you don’t confirm these things, you’ll regret it once you’re there.
- ✅ I have received the confirmation notice for my reservation at BeautsGO (it says “Confirmation Successful”, not “Submission Successful”).
- ✅ I have taken screenshots of the clinic’s address and the subway exit and saved them on my phone (these will come in handy when there is no internet access underground at the subway station).
- ✅ On the day of the treatment, avoid strenuous exercise (as it can cause excessive oil production in the skin, enlarge Pores, and affect the treatment results).
- ✅ Do not use retinol or high-concentration fruit acid products one week before undergoing any facial treatment (as they may cause the skin to become overly sensitive).
- ✅ If you have a morning appointment, remember to eat something before going. Fasting before undergoing injection treatments may cause dizziness.
- ✅ Please bring your passport or Taiwan residence permit (identification is required for some treatments).
- ✅ Make sure you have sufficient South Korean won with you or confirm that your credit card can be used normally in South Korea.
- ✅ Remember to bring the right after-treatment products: A sunscreen with an SPF of 50+ is essential, and an alcohol-free moisturizing spray is particularly gentle for freshly treated skin.
Finally, remember that after any treatment, no matter how minor it is, you must apply sunscreen before going outside and avoid touching your face with your hands at all times. By following these two rules, you can prevent more than 80% of potential post-treatment side effects.
You can book a Onecell appointment right now. Open BeautsGO, search for “Onecell”, select the desired branch and treatment plan, and you’ll be able to fill in the “Dermatology” option in your schedule tonight.