Medical Staff

The doctors who have seen the most acne cases treat acne most accurately

Even with the same acne,
the causes and treatments differ for each person

The medical staff at Cheongdam LJH Dermatology have researched and treated only acne for 30 years.
Based on extensive clinical experience, we provide personalized treatment plans for each patient.

Chief Director Dr. Hyegoo Ji

Hyegoo Ji, M.D.

Chief Director / Board-Certified Dermatologist

Education

  • M.D., Yonsei University College of Medicine
  • M.S. in Dermatology, Yonsei University College of Medicine
  • Board-Certified Dermatologist

Career Highlights

  • Chief Director, Cheongdam LJH Dermatology (1994 ~ Present)
  • Developer of G2 SKIN Cosmeceutical Brand
  • Established nationwide dermatology network and chain expansion
  • Developed stem cell and exosome-based treatment systems
  • Established specialized treatment protocols for acne and problematic skin

Professional Memberships

  • Member, Korean Dermatological Association
  • Member, Korean Acne Research Society
  • Member, Korean Society for Aesthetic Surgery & Medicine
  • Member, Korean Society for Laser Dermatology and Trichology
  • Numerous presentations and publications at domestic and international conferences

Specializations

  • Acne and problematic skin specialized treatment
  • Customized treatment for chronic and recurrent acne
  • Acne scar and pigmentation improvement
  • Stem cell and exosome-based skin regeneration treatment
  • Anti-aging and skin recovery programs

Research & Development

  • Research and development of dermatology-based cosmeceuticals (G2 SKIN)
  • Development and standardization of acne cause analysis system
  • Clinical application research of latest stem cell regenerative medicine
  • Standardization and systematization of dermatology practice processes
  • Leading Total Medical Group vision realization project
Director Dr. Soo-Hyun Yoon

Soo-Hyun Yoon, M.D.

Director / Board-Certified Dermatologist

Education

  • M.D., Soonchunhyang University College of Medicine
  • French National Professional Qualification (C.A.P.) in Aesthetics
  • Board-Certified Dermatologist

Career Highlights

  • Director, Cheongdam LJH Dermatology
  • Former Director, Who's Who Dermatology (Apgujeong)
  • Former Director, Beautiful World Clinic (Mokdong)
  • Member, Korean Dermatological Association
  • Member, Korean Association of Dermatologists
  • Member, Korean Society of Cosmetic Dermatology

Specializations

  • Acne and problematic skin treatment
  • Skin regeneration and management
  • Laser toning and cosmetic procedures
  • Anti-aging treatment
  • Comprehensive dermatological care

"Through 30 years of focusing solely on acne treatment, I've learned one thing:
Optimized treatment combining dermatological expertise and clinical experience
brings the most definitive results to patients."

- Chief Director Hyegoo Ji

Our Medical Staff's Philosophy

Sufficient Consultation Time

The causes of acne are complex. We take sufficient consultation time to comprehensively understand not only skin condition but also lifestyle habits, stress levels, and hormonal status.

Scientific Diagnosis

We make accurate diagnoses based on objective data including skin examinations, sebum secretion measurements, and hormonal tests when necessary.

Patient-Centered Treatment

Even with the same acne, we establish the most suitable treatment plan considering each patient's skin type, lifestyle pattern, and economic situation.

Continuous Monitoring

Treatment initiation is not the end. Through regular progress observations, we adjust treatment direction and prevent recurrence.

Appointment Information

We operate by appointment for sufficient consultation

Cheongdam LJH Dermatology operates by appointment to provide sufficient treatment time to each patient. Please make an appointment before your visit.

Consult with specialists with 30 years of experience

We solve your acne concerns with accurate diagnosis and customized treatment

Make an Appointment