When it comes to choosing a Dermatology clinic in Seoul, the question of “who will perform the procedure for you” is actually far more important than many people realize.
If the HIFU treatment is performed at a deeper or shallower depth, the results will be significantly different. Whether the Rejuran is injected at the correct layer determines whether the treatment will achieve “hydrating” effects or simply be a waste of effort. The same genuine Thermage device, when used by an experienced practitioner versus a novice, can result in vastly different outcomes in terms of the final contours achieved.
So this time, I would like to introduce someone in detail – the Chief Executive Officer and Managing Director of Essential Clinic: Yoo Juhui / 유주희.

Essential’s unique technique for administering Rejuran injections
Liu Zhouxi is the general manager and chief director of Aisenxiu Essential Clinic, and also serves as the person responsible for ensuring the high quality of medical services provided by the entire clinic.
Her background can be described by several key terms:
- 20 years of clinical experience: She belongs to the more senior category among the deans of Dermatology in South Korea. These 20 years mean that she has dealt with a wide range of real cases involving various skin problems, ranging from common skin issues to anti-aging treatments, thus possessing extensive technical expertise.
- She rejects the concept of assembly-line treatment: In her approach to medical aesthetics, “standardized packages” simply do not exist. Everyone’s skin condition, lifestyle, and budget are different, so the treatment plans must also vary accordingly.
- Precise anti-aging: Her core philosophy is “precision” – avoiding excess, being cautious, and ensuring sustainability. By using the most appropriate treatments, she aims to achieve the most natural results possible.

The experience of using Essential Ulthera in the aesthetic medicine industry
Many people have a misconception about anti-aging treatments: the more procedures or the more expensive the equipment, the better the results will be.
However, President Liu Zhouxi holds the exact opposite view.
In the official introduction of Essential Clinic, there is a phrase that appears repeatedly: “We do not regard medical aesthetics as a ‘tool for quickly changing one’s appearance,’ but rather see the skin as a system that requires understanding, respect, and ongoing care.”
Translating this concept into practical actions means:
Step 1: VISIA skin analysis – accurately detect pigment deposits and collagen loss beneath the skin surface, relying on data rather than “impressions”.
Step 2: Personal consultation by the hospital director (≥15 minutes) — Based on the test results, the hospital director will provide a customized treatment plan and clearly explain the function and expected outcomes of each treatment option.
Step 3: One-on-one follow-up throughout the entire process – from the initial consultation to the treatment and follow-up examinations, the same doctor will be responsible for everything, with no change of personnel in between.
The advantage of this approach is that the clinic director has a thorough understanding of your skin condition and can adjust the treatment plan accordingly based on your response after each session.
Essential by Aisenxiu: Personal and genuine post-treatment reflections
Essential Clinic has a total of four academic directors. In addition to Liu Zhouxi, they also include:
Yi Hyo-na / 이효나 — Director: Specializes in professional skin care, with extensive experience in injectable treatments and instrumental anti-aging techniques.
Yi Hyo-jung / 이효정 — Director: Specializes in the diagnosis and treatment of skin diseases as well as laser therapy.
Yi En-young / 이은영 — Director: An expert in Rejuran projects, with Rejuran PN being one of her areas of expertise.
What these four individuals have in common is a solid background in dermatology; they are not the type of people who simply complete a “quick-training course” before starting work. Moreover, the entire clinic places great emphasis on serving foreign tourists, providing support for communication in multiple languages such as Chinese, English, and Japanese.

Comparison between Essential by Aisenxiu and other clinics
Based on the project framework of Essential Clinic and the areas of expertise of Director Liu Zhouxi, the following services can be expected to offer relatively reliable experiences when provided by her or her team:
The American ultrasonic device Ulthera: It acts directly on the SMAS fascia layer, and the official genuine probes come with anti-counterfeiting codes for verification. The clinic director will adjust the treatment parameters according to each individual’s facial contours to avoid the problem of “the same number of treatments but different distributions.”
Thermage FLX (Phoenix Radio): Also using genuine equipment and probes, this treatment comes with a comprehensive post-treatment care package that includes LDM, Lifting masks, and regenerative lasers, all of which help to reduce dryness and redness after the procedure.
Rejuran PN: This is one of Dr. Lee Eun-yeong’s specialty treatments. The combination of Rejuran PN 2CC, a soothing facial mask, White Jade Needles, and a rejuvenating laser treatment is one of the most popular packages at the clinic.
V-LINE Thread Lifting: A targeted Lifting treatment for those with blurred contours in the lower face and sagging Apple Zone.

Prices and package options for Essentiale by Aisen Show
After visiting the “assembly line” clinics in South Korea, many people often complain about the following issues:
- The consultant was overly aggressive in making sales pitches, completely losing control of the budget.
- It wasn’t the director himself who performed the procedure; it was a technician.
- The same set of solutions is applied to everyone, without any customization.
- No follow-up was provided after the procedure, and no one was available to address any issues that might arise.
At Essential Clinic, there are clear mechanisms in place to address each of these issues:
No sales pressure: The principle of Liu Zhouxi’s team is to “first understand the customer’s needs” rather than “immediately recommend the most expensive packages”. Amanda’s Google review is the best proof of this: “I mentioned that my budget was limited and asked not to be pressured into making a purchase, and she actually took that request into consideration.”
Direct consultation by the director: All treatment procedures are performed personally by the certified director of the institute; there is no such thing as “technicians performing the procedures on behalf of the director.”
Post-operative follow-up: Within 7 days after the procedure, a dedicated staff member will call to address any questions regarding post-operative care. This is something that is almost impossible to achieve at “assembly-line” type clinics.
Essential Post-Treatment Care Recommendations from Eisen Show
It is necessary to confirm in advance the time when President Liu Zhouxi is available for consultations. It is recommended to make an appointment through the following methods:
Method 1: Make a reservation with one click through BeautsGO – On the BeautsGO platform, select “Aisenxiu Dermatology”, fill in the desired treatment and time, and a Chinese customer service representative will assist you with the arrangement.
Method 2: Add the WeChat account of the Chinese-speaking manager – You can directly contact the Chinese-speaking manager of the clinic and communicate one-on-one to inform them that you would like to make an appointment with Director Liu Zhouxi.
Method 3: Telephone/Message on the Platform – Make an appointment through a third-party platform, and please indicate “Request to see Director Liu Zhouxi”.
It is recommended to make a reservation 3-5 days in advance, as weekends and holidays tend to be more busy.