Scientific and Advisory Board

DHI Scientific and Advisory Board consists of world-renowned researchers and scientists, award-winning university professors and specialist doctors with years of experience in the diagnosis and treatment of hair loss and scalp diseases.


Konstantinos P. Giotis

DHI Global Medical Group Founder

The story is written by the winners. The story is written by those who dared to move away from the shore and discover new oceans. By those who had a vision, believed in it with their soul and even devoted their lives to it.
According to the American academic and writer Warren Bennis: “Leadership is the ability to transform vision in to reality”. The main attribute of the great leader is none other than the skill to inspire all those around him, even his opponents. Because with his example, he creates the desire for all to imitate him or make all others follow him on new journeys, even if they seem unreal and too difficult.
The DHI Global Medical Group founder, Konstantinos P. Giotis, is not only a natural born winner but also, a charismatic leader.
Today, 49 years since the founding of DHI, his name is among the leading seven pioneers in the history of Hair Restoration, among the top seven who succeeded in developing the Hair Transplantation industry.
During the 2nd International Congress of the World Institute of FUE, the DHI founder was listed among the seven most important reformers in the history of Hair Restoration. Worth noting that in this relevant and so important list, Konstantinos P. Giotis is the only European.

Throughout his career, Konstantinos P. Giotis never set out to lose, only to win. And he did it because:

He dared
Back in 2002 he was the first to take the decision to abandon the brutal FUT technique, replacing it with the FUE technique that he then pioneered.

He developed
A few years after the introduction of FUE, he went one step further and developed the world famous advanced Direct Hair Implantation, the only hair transplantation technique being taught at an Academic level by the Evgenides Hospital of the National and Kapodistrian University of Athens.

He invested in education
He founded the London Hair Restoration Training Academy, the first and only hair restoration academy on the world.

He innovated
It was him who devised the most advanced and complete system for hair loss diagnosis, the DSA.

He envisioned
From the first day, his vision was to change the world and society by restoring the lost confidence and self-esteem to all patients suffering from hair loss and scalp disorders. And this is exactly what he intends to achieve with the new DHI Prevention and Anti-Aging program. This groundbreaking new program focuses on the needs of each patient by examining the aesthetic aspects of hair loss, as well as the in-depth examination of the psychological and biological effects on the health of each patient. The outcome is the most complete personalized hair loss prevention treatment plan for every individual that the world has ever seen.

Today, DHI Global Medical group is the world’s largest and most experienced medical organization devoted to hair loss treatments bar none, with more than 75 clinics around the world and over 250,000 satisfied patients.
The DHI family is proud of having a real winner and a true leader at the helm of our medical company, “the man who changed hair restoration” Konstantinos P. Giotis.

“Innovation is what distinguishes the leader from the one who follows”.
Steve Jobs, 1955-2011, American Entrepreneur (Apple)

The leading seven pioneers in the history of Hair Restoration as presented during the 2nd International Congress of the World Institute of FUE:
1804 – Baronio
1866 – Thiersch
1869 – Reverdin
1939 – Okuda
1952 – Orentriech
1995 – Woods
1970 – Giotis

DHI Global Medical Group was born back in 1970 in Palo Alto, California, when Konstantinos P. Giotis launched the first DHI clinic. Today, 49 years later, it is the world’s largest and most experienced Hair Restoration provider, with 75 clinics worldwide!

1970: Konstantinos P. Giotis founds the DHI Global Medical Group in California, USA.
1985: The DHI founder invents the Derma Fuse Hair Replacement system.
1986: Konstantinos P. Giotis launches DHI’s first European clinic, in Athens, Greece.
1992: DHI Global Medical Group expands to France and few months later attracts the French media who introduce to their readers the Hair Loss Medical Diagnosis.
1993: DHI introduces the Micro Grafting, one of the first microsurgery based hair replacement techniques.
1995: The writer of the first book in Hair Displantation, Prof. R. Nordstrom participates in workshop with Konstantine P. Giotis.
1996: Prof. Y.C.Kim, inventor of “Choi Transplanter”, receives award from Konstantine P. Giotis for his research at the University of Korea. At the same time, DHI Athens hosts Prof. O’Tar Norwood who presents for the first time in Greece the world famous “Norwood Scales”, a very useful classification of male pattern baldness that is used by DHI doctors.
1997: He wanted to introduce quality standardization for the first time in Hair Restoration. DHI Athens becomes the first hair clinic to be awarded with the ISO 9002 Certification, a quality assurance designation that demonstrates company’s commitment to a consistent level of quality recognized under International standards.
1999: The 4th DHI Hair Workshop was one of the most successful for DHI Global Medical Group including guests such as Dr. J.C. Choi and Y.C. Kim, inventors of “Choi Transplanter”, and Dr. O’Tar Norwood. The same year, DHI Global Medical Group introduces the DHI Implanter, allowing for improvements in follicle viability.
2001: Konstantinos P. Giotis develops FUE (Follicular Unit Extraction) in conjunction with some of the finest doctors in the Hair Restoration industry.
2002: DHI chairman Mr. Konstantinos P. Giotis lectures at the Face congress, in Milan.
2004: Direct In technique is developed in response to surgical innovations in hair replacement. In this procedure, up to 2,000 follicles were implanted in an out-patient session of up to 6 hours.
2005: SHF (Single Hair follicle) technique introduced at the DHI Clinics and incorporates as an enhancement of the Direct In Technique.
2008: DHI Total Care System is launched, bringing together extensive research, advanced diagnosis, superior treatment and the promise of lifetime support to our clients.
2009: DHI Athens clinic is certified with ISO 9001:2008 from TÜV AUSTRIA HELLAS a prestigious European Organization.
2009: On July of 2009, his presentation at the ISHRS meeting in Amsterdam, entitled “The Psychological Aspects of Hair Loss” was well received by an audience of over 600 doctors from around the world.
2010: Konstantinos P. Giotis introduces the Direct Hair Implantation, a minimally invasive technique, that sets new higher and quality standards in the field of Hair Restoration worldwide.
2011: New DHI Building in London’s most prestigious medical district, the Harley St. Area, serves as DHI’s world Headquarters and Training center.
2012: In January 2012, DHI London clinic renewed the Certification of Care Quality Commission.
2013: On July 25, 2013 DHI Global Medical Group signed an agreement with Walnut Healthcare, a group company of Mr Raaja Kanwar of Apollo Group, a $6.6Bn group head quartered in India, having diversified businesses across the globe, and granting exclusive rights to Walnut to expand the DHI franchise internationally in Asia, Africa and South America. DHI Global Medical Group had granted a Master Franchise for India to another group company of Mr Kanwar in 2010.
2014: A new PRP protocol is developed and Direct-MPG is introduced with great success. DHI signs association agreement with Urban Retreat at Harrods and expands to USA, Nepal, Philippines and Afghanistan.
2014: Konstantinos P. Giotis strengthens partnerships with public universities in Europe and actively contributes to courses. Few months later, DHI receives European and US patents for the new Direct Hair Implantation instruments.
2015: DHI Global Medical Group receives EBA national award in customer focus category. At the same time, Konstantine P. Giotis, invents DSA, a unique Diagnostic System for Alopecia and initiated a research on hair follicle stem cells in collaboration with Prof. Vassilis Gorgoulis, Professor of Histology and Embryology in the University of Athens, Greece.
2016: K.P Giotis initiates a new research on the study of the effects of psychological disorders on hair loss and the impact of hair loss on psychology in collaboration with Prof. Charalambos Papageorgiou, Professor of Psychiatry in the University of Athens, Greece.
2017: K.P. Giotis is awarded the certificate of “Baldness and Hair Transplant Diploma” by the University Claude Bernard of Lyon in France. During the same year at the 2nd International Conference of the World Institute of FUE, he is listed among the seven most important reformers in the history of Hair Restoration, the only European on the list.
2018: K.P. Giotis receives award from the University of Athens for his lifelong contribution on the field of Diagnosis, Prevention and Treatment of Alopecia and hair disorders. At the same time, he receives a Honorable Distinction from The University Claude Bernard of Lyon in France for his global contribution to hair restoration. During the same year the DHI Founder introduces the new DPR program for the Diagnosis, Prevention and Treatment of Hair Loss.


Georgia Ligda MD

Plastic Surgeon, PhD

Πλαστικός χειρούργος που ειδικεύεται στην αισθητική πλαστική χειρουργική.
Έχει διδακτορικό δίπλωμα από το Πανεπιστήμιο Αθηνών ενώ από το 2002 είναι μέλος της Ελληνικής Εταιρίας Πλαστικής Επανορθωτικής και Αισθητικής Χειρουργικής.
Πιστοποιημένη γιατρός της DHI στον τομέα της Αποκατάστασης Μαλλιών.
Έχει συμμετάσχει σε πολλά συνέδρια σχετικά με την ειδικότητα της, παραδίδοντας διαλέξεις για ιατρικά θέματα.
Ειδικός Πλαστικός Χειρουργός στον κατάλογο του Αθηναϊκού Δικαστηρίου.

John Curran MD

DHI Channel Islands Clinic Director

John Curran MD is the Lead Physician and Chief Executive at the Aesthetic Skin Clinics in the UK Channel Islands and Ireland.
A respected senior member of the medical community, Dr. Curran specialises in cosmetic dermatological, medical and surgical procedures and personally oversees the addition of all treatments that are offered by Skinstation. He is known professionally for this role in the education of cosmetic medical practitioners.
Dr. Curran and is an active Council member, Chief Examiner and the current President for the British Association of Cosmetic Doctors (BACD).
He also lectures regularly on aesthetic medicine, is published in leading Cosmetic Medicine Journals and is involved in monitoring and setting industry standards through the Committee. His experience of cosmetic procedures span over 15 years. Dr. Curran has special interests in skin ageing, radio frequency, laser treatments and dermatological surgery. He is popular with peers and patients alike.
Dr. Curran has extensive experience in performing the full range of cosmetic dermatological and medical treatments including, Advanced use of Botulinum Toxin, Hyperhidrosis management, Dermal Hydration Therapy/Fillers, Microsclerotherapy/Vein Treatments, Minor Surgery, Lipotherapy, Fraxel, Thermage, Skin Rejuvenation, Skin Care, and deep medical Peels.
Dr. Curran is the Chief Executive of the Aesthetic Skin Clinic and mentors the medical team at all clinics.

Christian Dubreuil

Professor of Ear Nose Throat

Centre Hospitalier Lyon Sud Head and Neck Surgery – Oto Neuro Surgery Department 69495 Pierre Benite Cedex FRANCE
Director of the Department of ENT – Oto Neuro Surgery for 20 years (1986)
Professor of Oto Rhino Laryngology (exceptional Grade) at Lyon 1 University (1996)
Head and Neck Surgeon for Cancerology, Cervical and Plastic Surgery, 1977 – 1995.
Oto-neuro Surgeon Since 1987; more than 1,200 Acoustic Neuromas and Meningiomas of the Cerebello Pontine angle operated. Surgery of the Skull Base ; Paragangliomas, tumours of the Petrous Bone.
Surgery of the Facial Nerve : Decompression : Anastomosis, Facial Reparation Using Muscle transfers.
Surgery of Vertigo : Vestibular Neurotomy.
Middle Ear Surgery : Otosclerosis (150 – 180/ year), Cholesteatomas (120 – 180 / year), Tympanoplasties (150 – 200 / Year).
Middle Ear Implants : Med-El Symphonix, Middle Ear Transducer for Sensorineural Hearing Loss and Conductive Hearing Loss.
Many publications on Oto – Neurotology and Facial Nerve Surgery.

Professor J.C. Kim, MD, PhD

DHI Group Research Director

Professor J.C. Kim, MD, PhD is affiliated with The Hair Laboratory and Immunology Department, at Kyungpook National University in Seoul, Korea.
He is the leading international scientist in the research of hair follicle cloning and DNA testing.
His work focuses on identifying the specific genes responsible for hair loss.
Χαράλαμπος Παπαγεωργίου

Prof. Charalambos Papageorgiou

Professor of Psychiatry, National and Kapodistrian University of Athens

Medical School Department: Social Medicine, Psychiatry and Neurology

Laboratory/Hospital Department: First Department of Psychiatry

Academic Field: Psychophysiology

Βασίλης Γοργούλης

Prof. Vassilis Gorgoulis

Professor of Histology and Embryology, National and Kapodistrian University of Athens

Laboratory of Histology-Embryology
Molecular Carcinogenesis Group
Medical School
National and Kapodistrian University of Athens

Jana Hercogova MD, PhD

Professor of Dermatology

Chairwoman of the Prague Dermatology Centre
(Chairwoman of the Dermatology Dept., Charles University Prague)
(President of the European Academy of Dermatology and Venearology – EADV)

Professional qualifications
• MUDr., Medical School Qualification degree with honours, 2nd Medical School, Charles Univ., Prague (Czech equivalent to M.D.) – 1984
• Specialist on Dermatology and Venereology 1st degree, 2nd degree, Inst. for Postgrad. Education, Prague (Czech equivalent to Certification of the American Board of Dermatology) – 1988, 1993
• CSc., Thesis „Cutaneous Manifestations of Lyme Borreliosis“ (Czech equivalent to Ph.D.) – 1990
• Doc., Second doctorate on „Long-term Follow-up of the Patients with Cutaneous Manifestations of Lyme Borreliosis“ (Czech equivalent to Associate Professor) – 1994
• Prof., professor´s lecture on „Borreliosis Lymensis Cutis“ (Czech equivalent to Professor) – 2004

Present position
• Chairwoman Dept. Dermatology, 2nd Medical School, Charles Univ. Prague: since 1995
• Board Member Czech Society of Dermatology and Venereology:since 1998
• Scientific Board Member 2nd Medical School, Charles University since 1999
• Scientific Board Member Czech Medical Chamber since 1999
• Board Member European Academy of Dermatology and Venereology 2000-2004
• Board Member European Society for Cosmetic and Aesthetic Dermatology since 2000
• Professor of Dermatology, Venereology, Cell Biology and Psychocutaneous Medicine, Int. Faculty of the „Centro Interuniversitario di Dermatologia Biologica e Psicosomatica“, Florence, Siena, Milan, Italy since 2001
• Visiting Professor University of Siena, Italy since 2003
• Board Member Czech Society of Laser and Aesthetic Medicine since 2003
• President Czech Academy of Dermatology and Venereology since 2003
• Vice-President Central-Eastern European Dermatovenereological Association since 2003
• Congress

Τορέλο Λότι

Torello Lotti MD

Professor of Dermatology and Director of Dermatology & Venereology Dpt of the University of Guglielmo Marconi, Rome, Italy

The main fields of his scientific researches are focused on the study of neuropeptides in numerous skin diseases, plasminogen activators in autoimmune dermatosis and lichen planus , and the clinical aspects and treatment of psoriasis with particular attention to new therapies with biological agents.
Areas of interest:
Acne, Eczema, Allergy, Trichology, Cosmetology Dermatology.
Of particular relevance for research on pathogenesis and novel treatments for vitiligo and psoriasis.
Finally it is worth mentioning his research on the prevention and therapy in dermatology-oncology melanoma and non-melanoma skin cancer.
Αλέξανδρος Κωστόπουλος

Alexandros Kostopoulos MD

DHI Medical Director

Βάσια Μπίρου

Vassia Birou MD

DHI Medical Director

Γιώργος Λιόσης

Georgios Liosis MD

Dermatologist, DHI Medical Director

Γιώργος Γούναρης

George Gounaris MD

Plastic Surgeon, DHI Medical Director

Ηλίας Ευαγγελάτος

Ilias Evangelatos, MD

Dermatologist, DHI Medical Director

Dr Evangelatos has been a member of the DHI Global Medical Group for more than 10 years. He is a dermatologist specialized in and with extensive experience in hair restoration. Dr Evangelatos is a Master DHI Athens Trainer.

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