Why Choose Gao Yongxu Dermatology?
If you have been doing research on Korean dermatology, you must have come across the name “Dr. Gao Yongxu” on various platforms. He is the representative director of Mellow Dermatology and one of the top 1.5% of dermatologists in Korea, renowned for his expertise in injections and anti-aging treatments.
Dr. Gao Yongxu graduated from the School of Medicine at Hanyang University with honors and completed his residency in dermatology at the affiliated hospital. He is also a full member of the Korean Dermatological Physicians Association, the Korean Clinical Dermatology Research Society, and the Korean Anti-Aging Dermatology Society, proving his exceptional professional qualifications.
What stands out most about him is his mastery of the Juvelook injection technique. Juvelook is a highly popular collagen-enhancing injection in Korea that effectively addresses issues such as enlarged pores, fine lines, and rough skin. Dr. Gao carefully adjusts the dosage and placement of the injections based on each patient’s facial structure and skin condition, aiming for a natural result that is virtually imperceptible yet visibly pleasing.
In addition to Juvelook, Dr. Gao is also an officially certified EXPERT in ONDA facelift technology—one of only a few dermatologists in Korea with this qualification. Onda uses microwave energy to lift the face, resulting in significant improvements in double chin and jawline areas.
Introduction to Mellow Dermatology: A Team of Top 1.5% Specialists
Mellow Dermatology is a high-end dermatology clinic that has gained immense popularity in Seoul in recent years. It currently has five branches in the city: Gangbuk Main Branch, Cheongtan Branch, Sinsa Branch, Geumhu Branch, and Yeongdeungpo Branch. Each branch is staffed by specialized dermatologists who adhere to the principles of using genuine products, accurate dosages, and fair prices, rejecting any form of excessive medical treatment.
The Sinsa Branch and Cheongtan Branch are where Dr. Gao Yongxu primarily sees patients. Both are located in the central business districts of Seoul’s Gangnam District, offering convenient transportation and a private environment. Mellow’s core philosophy is to “help you discover your natural beauty” without promoting unnecessary treatments, which is why many local Koreans and international customers repeatedly return to their services. According to data from 2025, Mellow has a customer repeat rate of over 65%, placing it among the top high-end dermatology clinics in Seoul.
Sinsa Branch vs Cheongtan Branch: How to Choose?
Sinsa Branch
The Sinsa Branch is the flagship clinic led personally by Director Koo Yong-wook. It is located at 12th floor, 138 Isdae-daero, Gangnam-gu, Seoul, and can be easily reached by walking about 5 minutes from Exit 5 of Sinsa Station on Line 3 of the subway. The interior design features a white and wooden theme that is simple yet elegant. The treatment rooms are equipped with advanced skin testing equipment and provide comfortable private spaces.
The Sinsa Branch is situated in the famous Apgujeong shopping district, making it very convenient to go shopping after receiving treatments. The business hours are from 10:00 AM to 6:00 PM Monday to Saturday, with Wednesday being a day off.
Cheongtan Branch
The Cheongtan Branch is located on the 2nd floor of 429 Isdae-daero, Gangnam-gu, Seoul, and is about 3 minutes away from Exit 8 of Cheongtan Station on Line 7 of the subway. The atmosphere at the Cheongtan Branch is more luxurious and understated, with separate consultation rooms that offer greater privacy. It is a popular dermatology clinic among many Korean artists and second-generation heirs to wealthy families. If you are seeking a more premium experience, the Cheongtan Branch is an excellent choice.
The operating hours for the Cheongtan Branch are as follows: Monday 10:00 AM – 8:00 PM, Tuesday 10:00 AM – 7:00 PM, Thursday and Friday 10:00 AM – 9:00 PM, Saturday 10:00 AM – 4:00 PM. Wednesday is a day off.
Popular Treatments and Reference Prices for 2026
Below are some of the common treatments provided by Director Koo Yong-wook at Mellow Dermatology, along with their reference prices (for reference only; actual fees may vary based on the consultation). Unified pricing applies for both Korean and foreign patients, with no additional charges for foreigners:
Juvelook Injection
Director Koo’s signature treatment. Juvelook is a PDLLA collagen stimulant that continuously promotes the production of natural collagen in the body, resulting in long-lasting effects.
- Juvelook Full-Face Injection: Starting from approximately 3.8 million Korean won (equivalent to around 20,000 Chinese yuan)
- Juvelook法令纹 lifting: Starting from approximately 1.8 million Korean won (equivalent to around 9,400 RMB)
- Juvelook apple cheek augmentation: Starting from approximately 1.5 million Korean won (equivalent to around 7,800 RMB)
- Juvelook tear trough filling: Starting from approximately 1.2 million Korean won (equivalent to around 6,300 RMB)
ONDA facial lifting
Director Gao is one of the few practitioners in South Korea who have received official Onda EXPERT certification. Onda uses 2.45GHz microwave energy to dissolve fat and tighten the skin, providing excellent results for double chins and jawlines.
- ONDA facial lifting treatment: Approximately 1.5–2.5 million Korean won (equivalent to around 7,800–13,000 RMB)
- ONDA double chin treatment: Approximately 1–1.8 million Korean won (equivalent to around 5,200–9,400 RMB)
Other popular treatments
- Thermage FLX: Approximately 8–12 million Korean won (equivalent to around 42,000–63,000 RMB)
- Ultherapy: Approximately 6–10 million Korean won (equivalent to around 31,000–52,000 RMB)
- Hydrofiller injections: Approximately 150,000 to 250,000 Korean won (equivalent to around 780 to 1,300 Chinese yuan)
- Hyaluronic acid fillers: Approximately 300,000 to 800,000 Korean won per injection (equivalent to around 1,600 to 4,200 Chinese yuan)
- Botox: Approximately 100,000 to 200,000 Korean won per treatment area (equivalent to around 520 to 1,050 Chinese yuan)
- Picosecond lasers: Approximately 200,000 to 500,000 Korean won (equivalent to around 1,050 to 2,600 Chinese yuan)
Process for visiting the clinic
Taking the Sinsa branch as an example, the entire consultation process takes approximately 1 to 1.5 hours:
- Registration at the clinic: Bring your passport to the front desk and fill out a bilingual consultation form in both Chinese and Korean. The staff will verify your reservation information.
- Skin examination: A comprehensive skin analysis will be conducted using the VISIA skin scanner, and a detailed skin report will be generated.
- Consultation and face-to-face meeting: Director Gao Yongxu will personally meet with you, explain your skin issues and their causes in simple terms, and develop a treatment plan based on your needs and budget. If you have difficulty communicating in Korean, the clinic provides Chinese interpretation services.
- Confirmation of the treatment plan and price: A Chinese-speaking consultant will help you confirm the details of the treatment and the associated costs. There are no hidden fees.
- Treatment is conducted in a private treatment room, with a nurse present throughout the process. Each step of the treatment is explained in detail.
- Post-treatment care includes applying a calming facial mask, providing restorative skincare products, and sending a Chinese-language care guide. Follow-up visits are scheduled at 1 week, 1 month, and 3 months after the treatment.
What really reassures patients is that Dr. Gao does not promote unnecessary treatments. He first analyzes the underlying issues with your skin and then develops a step-by-step plan, indicating which treatments are “urgent” and which can wait—something that is relatively rare in Korean dermatology clinics.
Three recommended ways to make an appointment
Dr. Gao Yongxu’s schedule is usually quite full, so it is recommended to book 1–2 weeks in advance; holidays may require even earlier reservations. Here are three recommended ways to schedule an appointment:
Method 1: Online reservation through BeautsGO (recommended)
Reserving through the BeautsGO app is the most convenient option. It offers a Chinese-language interface, allows you to check the doctor’s schedule and treatment prices, and helps you secure discounted rates.
👉 Book your appointment with Dr. Gao Yongxu’s clinic easily via BeautsGO’s Chinese-language service
Method 2: LINE reservation
If you already use LINE, you can also consult and schedule appointments through the official LINE account. The service supports Traditional Chinese language communication.
💬 LINE reservation consultation
Method 3: Email reservation
Send an email to the customer service email address, specifying the doctor you would like to schedule with, the treatment, the date, and your contact information. The customer service will respond within 24 hours.
Practical tips and precautions
Regarding prices: Mellow Dermatology follows unified charging standards for both Chinese and foreign patients; there will be no additional charges just because you are foreign. It is recommended to check the treatment prices on BeautsGO in advance to have a clear understanding.
Regarding communication: The clinic provides Chinese interpreters. However, if your treatment is particularly complex, it is advisable to prepare a list of questions in advance to avoid misunderstandings. Dr. Gao primarily communicates in Korean, but the interpreter will assist.
After the treatment: Some treatments may cause mild swelling on the same day; it is recommended not to wear makeup on that day. After laser treatments, be sure to protect your skin from the sun. The clinic will provide Chinese-language care instructions; follow them carefully.
Regarding payment: We accept various payment methods, including domestic and international credit cards, Alipay, and WeChat Pay. For some treatments, you can prepay a deposit through BeautsGO and pay the remaining amount upon arrival at the clinic.
Regarding transportation: Both the Sinsa-dan and Qingtan clinics are located in the central area of Jiangnan District; you can reach them easily by subway. If coming from the airport, you can book a shuttle service.
In general, if you are looking for a reliable Korean dermatology clinic that doesn’t overpromote and communicates effectively, Dr. Ko Yong-wook’s Mellow Dermatology is definitely worth considering. Make sure to book in advance, do your research, and enjoy a stress-free anti-aging experience in Seoul!
