🌏 For international patients · Interpreter on-site · Same price as locals

GANGNAM HERA
Coretox

Botox

Coretox

Coretox is a botulinum toxin type A developed by Medytox in Korea.

Procedure time

About 5~10 minutes

Downtime

Downtime is minimal and most people resume daily activities immediately

Overview

Description

Coretox is a botulinum toxin type A developed by Medytox in Korea. It is a "core," complexing-protein-free formulation in which the non-active accessory proteins are removed, refining only the essential 150 kDa neurotoxin. This complexing-protein-free design is intended to reduce the risk of antibody resistance over repeated treatments. It is also produced without animal-derived components in the culture medium and without human serum albumin as a stabilizer, and it works like other type A toxins to relax targeted muscles and soften wrinkles.

Coretox at HERA Clinic, Gangnam
HERA Clinic · Gangnam, Seoul

Why it works

The essentials, at a glance

Wrinkle Smoothing

Relaxes overactive expression muscles to soften glabellar, forehead, and eye-area lines.

Facial Slimming

Helps reduce masseter volume for a slimmer, more defined jawline over time.

Reduced Resistance Risk

Its complexing-protein-free structure is designed to lower the chance of neutralizing-antibody formation with repeat use.

Treatment Areas

Treatment Areas

Precisely targeted and placed, tailored to your anatomy and goals.

Forehead lines

Frown lines (glabella)

Crow's feet

Jaw slimming (masseter)

Shoulder line (trapezius)

Underarm sweating

Who it's for

Recommended For

A versatile treatment — here's where it makes the biggest difference.

  • Softening frown, forehead & crow's-feet lines
  • Jaw (masseter) slimming for a slimmer face
  • Frequent toxin users minimizing resistance risk
  • Those wanting a protein-free formula without albumin

Your visit

How the Procedure Works

A calm, guided sequence from first consult to aftercare.

    01

    Consultation to evaluate muscle activity and treatment goals

    02

    Cleansing of the treatment area

    03

    Marking of the injection points

    04

    Injection with a fine needle

    05

    Cooling and soothing of the treated area

    06

    Aftercare guidance, with retreatment usually every 3~4 months

Trusted by international patients

5.0

Google rating · 211 verified reviews

Same price as locals

No foreigner markup

English interpreter

On-site, every visit

Why HERA

Why international patients choose HERA

Everything handled for a safe, stress-free treatment in Seoul.

English interpreter

A dedicated interpreter with you at every step.

Same price as locals

Transparent pricing with no foreigner markup.

6,000+ global patients

Trusted by international patients from around the world.

Genuine, approved fillers

Only authentic, government-approved products.

1:1 specialist care

A board-certified doctor from consult to aftercare.

3 min from Gangnam Station

In the heart of Seocho — easy to reach.

Your medical team

A Medical Team That Sees You Through, Start to Finish

Board-certified specialists who treat every patient like family — the same doctor guides you from your first consultation to your final result, aiming for natural beauty with minimal need for revision.

  • Dr. Kim Jong Seon

    Dr. Kim Jong Seon

    I am a doctor you can trust, dedicated to enhancing your natural beauty.

    Career & Credentials

    • Seoul National University Graduate School of Public Health Executive Course,
    • Former Director of Pladen Plastic Surgery

    +4 more

  • Dr. Lee Jong Hoon

    Dr. Lee Jong Hoon

    I dedicate myself to achieving the best results with minimal need for revision.

    Career & Credentials

    • Seoul National University Graduate School of Public Health Executive Course,
    • Awarded Minister of Health and Welfare Award

    +7 more

Yujin Kim

5 months ago

I recently visited Hera Gangnam for a more intensive lifting treatment, and I couldn't be happier with the experience. As someone who had only done basic toning and hair removal before, I was incredibly nervous about trying actual "lifting" lasers, but this clinic put me completely at ease. ​What sets Hera apart is their thoroughness. I had two separate consultations: ​Consultation Manager (상담실장님): She was incredibly kind and helped map out my concerns without being pushy. ​Head Doctor (원장님): He provided a deep dive into the technical side, ensuring I understood exactly how the treatments would work for my face shape. ​I focused on two specific areas to tackle my double chin and overall facial contour: ​10Thera Lifting: A game-changer! The procedure was much more comfortable than I expected. It does hurt a lot but apparently not as bad as Ulthera. The staff members and the doctor would check on me the whole time to make sure the treatment is not too awfully painful. ​Sok-Pae Injection (쏙빼주사): Targeted specifically at my double chin area. ​ ​The entire staff is knowledgeable, professional, and most importantly, they actually listen and care for my needs. I’m already seeing a difference (I might need two more sessions in a couple of months) and am definitely coming back for my forehead and jaw Botox next time! ​Highly recommended if you're a "lifting newbie" looking for a trustworthy clinic in Gangnam.

Verified Google review

Tamara Jovanovic

5 months ago

I recently visited Gangnam Hera Clinic for a Titanium Lifting treatment, and the entire experience genuinely exceeded my expectations. The staff were incredibly warm and welcoming, immediately putting me at ease the moment I walked in. They explained every part of the procedure clearly and thoroughly, making sure I knew exactly what would happen and how to prepare. Although I’d heard that lifting treatments can be uncomfortable, this one was surprisingly manageable. The doctor checked in with me constantly and even took short breaks to make sure I wasn’t feeling any pain, which I really appreciated. The whole process was smooth, well-organised, and very professional. I could tell they were attentive and meticulous from start to finish. The clinic itself is spotless, modern, and honestly one of the best I’ve visited in Seoul!

Verified Google review

Bella Isakowa

7 months ago

💖 Visit to Hera Gangnam Clinic: Absolutely Recommended! I visited the Hera Gangnam Clinic today and was pleasantly surprised by how friendly and accommodating everyone was—from the staff and doctors right up to the boss. I received excellent consultation because I wanted to get lip fillers, and achieving symmetry was especially important to me. The attending physician held a very detailed consultation with me and fulfilled all my wishes perfectly. I am super satisfied with my lips already and can hardly wait to see the final result once the swelling has gone down. I will definitely be back! I wholeheartedly recommend this clinic to all foreigners coming to Korea. The entire team speaks several languages, so you don't have to worry about not being understood.🙌🏻

Verified Google review

M K

7 months ago

I recently tried the Rejuran treatment at Gangnam Hera Clinic, and I honestly had such a great experience. Before starting, the doctor carefully explained everything to me and recommended the version of Rejuran that would suit my skin best. I had heard that this treatment can be quite painful, but honestly, it was completely manageable. The staff was incredibly warm and welcoming from start to finish. They checked on me throughout the process and made sure I felt comfortable the entire time. The follow-up was also really professional, and they made sure I understood how to take care of my skin afterwards. Overall, I really recommend Gangnam Hera Clinic if you’re thinking about getting Rejuran. It was a smooth, reassuring, and positive experience. ✨

Verified Google review

J Kim

8 months ago

This was my second time visiting Gangnam Hera after returning from the States, and once again, I’m so impressed. The staff are friendly, professional, and genuinely attentive. The clinic is exceptionally clean and modern, with a relaxing atmosphere that makes every visit comfortable. The prices are very reasonable, but what truly stands out is the quality of care and the amazing results. It’s a top-quality dermatology clinic that I would absolutely recommend to my friends and anyone looking for trusted, high end skincare in Korea.

Verified Google review

Hui Lim

5 months ago

My very first visit to Korea & head straight to HERA Gangnam for my first ever rejuran experience too! Thank you Dr. Lee Jong Hoon for his professionalism, is almost painless for me during the whole process & I almost fall asleep 😅 highly recommend! Their staffs were really nice too! Always check in on me if im feeling ok 🙏🏻 will def come back again

Verified Google review

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Frequently asked questions

Frequently asked questions

Answers to the questions international patients ask us most.

How soon will I see results?
Most people notice the effect within 3~7 days, with the full result typically visible around 2 weeks after treatment.
How long does it last?
Results generally last about 3~4 months. Duration varies by dose, treatment area, and individual metabolism.
Does it hurt?
Discomfort is usually mild because very fine needles are used; topical numbing or cooling can be applied if needed.
Will my expression stay natural?
With appropriate dosing and placement, the goal is to soften lines while preserving natural facial movement.
How is Coretox different from other toxins?
Coretox is a complexing-protein-free ("core") toxin from Medytox, refined to the essential neurotoxin and made without human serum albumin, which is intended to reduce the risk of antibody resistance with repeated treatment.

Visit HERA Clinic

Visit HERA Clinic

In the heart of Seocho, Seoul — just minutes from Gangnam.

Address

4F, 9 Seocho-daero 73-gil, Seocho-gu, Seoul, Republic of Korea

Opening Hours

  • Tuesday, Wednesday, and Thursday : 10:00 AM – 7:00 PM
  • Monday, Friday : 10:00 AM – 8:00 PM
  • Saturday : 10:00 AM – 5:00 PM
  • Lunch Break: 1:00 PM – 2:00 PM
  • Closed on Sundays and public holidays
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  • Same price for locals & foreigners
  • English interpreter on-site
  • MOHW-registered clinic
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