Our Specialists

Dr. Miguel Martinez del Campo

Leading Doctor of the QUALEVITA Clinic for Preventive and Anti-Aging Medicine. Vice President of the World Council of Preventive, Regenerative, and Anti-Aging Medicine, one of the members of the Board of Directors of WOSIAM (The World Society of Interdisciplinary of Anti-Aging Medicine), and also the head of the Council for Education World Council of Preventive Medicine. Dr. Martinez dedicates his life and practice to the advancement of innovative, patient-centered, evidence-based medicine.

Elizaveta Fridel, md

A highly qualified and experienced medical professional, is the Medical Director at QUALEVITA Clinic in Barcelona. With a strong emphasis on antiaging medicine and hormone therapy, Dr. Fridel is an expert in the field of integrative medicine, certified doctor by Tierry Hertoghe medical school and member of European Society of Preventive, Regenerative and Antiaging Medicine (ESAAM).
Dr. Fridel obtained a medical university degree in medicine and pediatrics and is a proud member of the Barcelona College of Physicians (COMB), completed postgraduate course of Microbiome analysis in Regenera University, is a member of Spanish society of integrative health and medicine (SESMI). With extensive master in several medical specialties, including endocrinology, gastroenterology, endoscopy, and pediatrics.
With a focus on anti-aging medicine and hormone therapy, Dr. Fridel is dedicated to helping patients achieve optimal health and wellness and offers personalized, evidence-based medical care that targets the underlying causes of aging, such as hormonal imbalances, disbiosys, and oxidative stress.


Genetic, microbiome, food supplements

Dr. Thierry Hertoghe

Dr Thierry Hertoghe has been practising his Hormone Replacement and Anti-Aging Medicine for over 20 years. Together with his sister, Dr Thérèse Hertoghe, they proudly represent the fourth generation of doctors working with hormones since 1892 (after Eugène Hertoghe, former Vice-President of the «Royal Academy of Medicine» in Belgium, and Luc and Jacques Hertoghe.) — endocrinologists).
Dr Thierry Hertoghe has dedicated his life to promoting better, patient-centred and evidence-based medicine.
President of the World Society of Anti-Aging Medicine (over 7,000 physicians)
Member of the Endocrine Society
Member of the International Council of Scientific Advisors of the American Academy of Anti-Aging Medicine.
Member of the Board of the European Anti-Aging Medicine (based in Paris)
Founder and member of the editorial board of European Anti-Aging Medicine (London)

Tatiana Bakunina

Tatiana Bakunina is a Harvard graduate and entrepreneur with a 20-year background in preventive, integrative, and anti-aging medicine. She is a member of the American Society for Anti-Aging Medicine and the European Society for Hormone Replacement Therapy. Tatiana founded QUALEVITA in 2011 and now has clinics in Brussels, Barcelona, and Amsterdam, serving patients from over 35 countries. In 2018, she launched DIAGNOST, an online health testing project. Tatiana believes in achieving happiness, love, harmony, and new opportunities at any stage in life.