Dong-An Joongsim Clinic, Apgujeong, Gangnam, Seoul Our Doctors
Dr. Soyoun Koo and Dr. Chang-Hwan Cho were featured in the November 2024 issue of Noblesse as doctors with 20 years of experience shaping K-beauty trends. Together with Dr. Jinhyung Lee, they bring experience from conferences and invited lectures abroad to every consultation and treatment.

Doctor
Chang-Hwan Cho Physician
In Practice




Award Presentations


Education & Training
- 1991–1997: Medical degree, Seoul National University
- 1997–1998: Internship, Samsung Medical Center
- 1998–2002: Specialist training, Samsung Medical Center
Experience
- Doctor, Dong-An Joongsim Clinic
- Senior Vice President, Korean Aesthetic Surgery and Laser Society (ASLS, formerly DEMIRE)
- Editor-in-Chief of Publications, Aesthetic Surgery & Laser Society
- 2004–2005: National Medical Center
- Medical Article Review Committee, Korean Medical Association
- Health and Medical Book Selection Committee, Korean Medical Association
Professional Memberships
- Full Member, Korean Society of Ophthalmic Plastic and Reconstructive Surgery
- Full Member, Korean Society of Aesthetic Surgery
- Full Member, Korean Society of Lipoplasty
Medical Advisory Roles
- Amalian
- BAZ BIOMEDIC
- BNV biolab
- CLASSYS
- LASEROPTEK
- Wellcomet
- Quanta · DEKA Korea
- TENTECH
- VIOL
Awards & Credentials
- March 20, 2026: HILO WAVE Top Rankers recognition for the highest treatment volume in the shortest period (Medical Aesthetic)
- July 26, 2025: Panel Chair, Alma Korea TITANIUM EVOLUTION User Meeting
- July 19, 2025: Outstanding Trainer, Radiesse® Train the Trainer, 2nd Module (Merz Aesthetics)
- May 23, 2025: Award marking 1,000 EMFACE treatments (BTL Asia)
- May 10, 2025: Loyal Customer Award, EMFACE Korea First Anniversary (BTL)
- December 21, 2024: Alma Elite Award (Alma)
- March 11, 2020: Best Speaker Award, Quattro Beam Seminar (Quanta System)
- Invited as a Korean Key Doctor to Quanta System's 30th Anniversary
Clinical Interests
- Collagen Stimulators & Skin Boosters
- Monopolar Radiofrequency (4 MHz and 6.78 MHz)
- Microwave Skin Tightening (ONDA)
- 785 nm Picosecond Laser Treatment for Pigmentation
- Needle-Free Injection for Scar Treatment
- RF + HIFES Facial Muscle Stimulation (EMFACE)
- Aging Well & ECM Regeneration
- Facial Aging Associated with GLP-1 Treatment
- Autologous Blood-Based Regenerative Treatment (ExoSmart)
Invited Lectures Abroad
- China, Japan, Italy, Russia, Singapore, Indonesia, Thailand and Vietnam
Research Papers
- 2026: Comparative mechanotransduction of collagen biostimulators and facial aging associated with GLP-1 treatment (Journal of Cosmetic Dermatology)
Books
- An Introduction to Lasers: From CO2 to Picosecond Lasers (2018 Autumn Conference)
- Dermal Regeneration (2019 Autumn Conference)
- Skin Boosters and Hydrating Injections
- SKIN BOOSTER: ASLS Guidebook for Aesthetic Medicine Practitioner (English edition; second edition published)
- Skin Tightening Lasers and Picosecond Lasers
- SKIN REJUVENATION
- Facial Rejuvenation with Thread Lifts and Collagen Stimulators (co-author)
- Aesthetic Body Medicine: Medical Approaches to Body Shape and Contouring
Forthcoming
- Combination Treatments: Devices, Fillers, Collagen Stimulators and Botulinum Toxin
In the Media
- 2018: BiST, December issue, on Korean aesthetic medicine trends and skin tightening treatments
- 2021: Doctor Think / Reviresco webinar on effective melasma treatment
- 2024: Noblesse, November issue, Beauty INSIDE EMFACE column with Dr. Soyoun Koo
- 2025: DEMIRE newsletter BOA, issue 14, interview on the society's publishing program and its role in documenting aesthetic medicine
- 2026: Medical Aesthetic, Top Rankers interview on HILO WAVE treatment experience
- 2016–2026: Monthly D&PS columns on aesthetic medicine, skin tightening, pigmentation and body contouring
Interview
- “The advantage is being able to perform the treatment without unnecessary stress.” Medical Aesthetic, Top Rankers (March 20, 2026)

Doctor
Soyoun Koo Physician
About Dr. Koo
- Dr. Koo is a familiar voice on Korean television, sharing medical advice on programs including KBS Morning Live, SBS Idea How Much, YTN Science, tvN People Inside and MBC This Morning. Her appearances have made her a widely recognized beauty mentor and commentator.
In Practice




Award Presentations



Education & Training
- Specialist training, Seoul National University
Experience
- Doctor, Dong-An Joongsim Clinic
- E-Learning Review Committee, Korea Research Institute for Vocational Education and Training
- Consulting Doctor, IOPE, Amorepacific
- Clinical presentations and demonstrations for Solta (LipoSonix, Fraxel DUAL and Thermage); lectures for JW Pharmaceutical; invited conference lectures in Jakarta, Indonesia; presentations for the Korean Society of Aesthetic Medicine and Well-Being
Professional Memberships
- Full Member, Korean Academy of Family Medicine
- Full Member, Aesthetic Surgery & Laser Society
- Full Member, Korean Society of Aesthetic Surgery
- Full Member, Korean Laser Society
- Full Member, Korean Society of Lipoplasty
- Full Member, Korean Society of Obesity and Body Contouring
Medical Advisory Roles
- BTL Korea
- ZELTIQ Korea
Awards & Credentials
- June 27, 2026: Accepted a HILO WAVE USER TOP5 AWARD on behalf of the clinic (Higher Corporation and Neopharm)
- August 21, 2025: Korea's first ONDA LIFTING EXPERT MEMBER (El.En and DEKA). The award recognizes clinical experience and academic knowledge in ONDA microwave treatments, shared through procedural training and education for other users.
- July 19, 2025: Outstanding Trainer, Radiesse® Train the Trainer, 2nd Module (Merz Aesthetics)
- May 23, 2025: Award marking 1,000 EMFACE treatments (BTL Asia)
- May 10, 2025: EMFACE Loyal Customer Award (BTL)
- December 21, 2024: Alma Elite Award (Alma)
- Invited as a Korean Key Doctor to Quanta System's 30th Anniversary
Clinical Experience
- More than 7,000 CoolSculpting treatments, the highest volume in Korea
- Recognized as a leader in nonsurgical body contouring
- A physician commentator on obesity, assessing body composition and explaining treatment options on television
- EMFACE (HIFES + RF): presentation on 1,000+ cases at the ASLS 2025 Autumn Conference
Clinical Interests
- Cryolipolysis (CoolSculpting) for the double chin, underarm fullness, upper arms, knees and calves
- Facial Muscle Stimulation (EMFACE, HIFES + RF)
- Muscle-Based Body Contouring (EMSCULPT, HIFEM)
- Facial Muscle Management After Botulinum Toxin Treatment
- 2.45 GHz Microwave Body Treatments (ONDA Body)
- Dual-HA Collagen Boosters
In the Media
- 2014: Allure, January issue, medical commentary on Thermage CPT
- 2015: SURE, November issue, medical commentary on dermocosmetics
- 2016: bi magazine, six contributions to Academy in bi
- 2016: Geumgang Ilbo, December, medical commentary on Discovery PICO and picosecond laser toning
- 2017: VOGUE Korea, medical commentary on chemophobia
- 2018: Harper's BAZAAR, medical commentary on Haute Vie beta-glucan
- 2020: Noblesse Weddings, Spring/Summer, wedding treatment Q&A
- 2020: ALLURE, three contributions (sunlight and depression, puffy eyes, shampoo and scalp care)
- 2024: Noblesse, November issue, Beauty INSIDE EMFACE column with Dr. Chang-Hwan Cho
Television Appearances
- KBS Morning Live: Skin Myths and Facts
- Yangcheon Broadcasting: News Interview
- SBS Idea How Much: Skin Care After Bathing
- KBS Morning Live
- YTN Science
- MBC This Morning
- tvN People Inside: Cosmetic Procedures Before Job Interviews
- StoryOn, Lee Seung-yeon and 100 Women: Neck Lines
- Y-STAR Live Star News: Actor Lee Byung-hun's Youthful Skin
- KBS Beauty Queen: Skin Hydration
- KBS Beauty Queen: Skin Firmness
- tvN Visual Suspect: Bathing in Raw Milk
- tvN Visual Suspect: Tanning with a Photocopier
- Channel A News: Underarm Sweating

Doctor
Jinhyung Lee Physician
Education & Training
- Medical degree, Keimyung University
- Clinical training, Korea Institute of Radiological & Medical Sciences
Experience
- Doctor, Dong-An Joongsim Clinic
- Former Associate Doctor, Tones Clinic
Professional Memberships
- Full Member, Korean Aesthetic Laser Medical Society
Medical Advisory Roles
- Medical Advisor, ALMA
- Medical Advisor, DEKA
- Medical Advisor, LASEROPTEK
Clinical Interests
- Lecture and live demonstration of RADIESSE calcium-based filler (Merz invited seminar, March 9, 2026)
- Live ONDA and RedTouch PRO demonstrations for visiting Japanese doctors (DEKA seminar, February 9, 2026)
- HILO WAVE “WAVE: UNFOLDED” Symposium (June 27, 2026)
Find the Right Treatment with Your Doctor
We are open until 9 p.m. on Fridays and also see patients on Saturdays.