Khaled Ezzedine is a Doctor, Professor of Dermatology, holder of a Doctorate in epidemiology, and a habilitation to Direct Research in epidemiology. In 2008, he joined the Bordeaux National Reference Center for Rare Skin Diseases, CHU De Bordeaux. He is also a researcher attached to the joint INSERM U1153/INRA U1125 research unit at the University of Paris 13. His major areas of interest are pigmentation disorders including vitiligo and ethnic skin disorders, skin aging, and research into its determinants, attitudes, and practices with respect to sun exposure and the construction of quality of life scales. Since 2015, he has been appointed Professor of Dermatology at the University of Paris Est Créteil and joined the dermatology department of the Henri Mondor hospital. To date, he has written more than two hundred and twenty scientific articles and book chapters, including nearly 200 publications listed in PUBMED. He has been Associate Editor of the scientific journal British Journal of Dermatology in the Epidemiology section since 2015. In addition, he is a reviewer for several renowned medical journals, such as the Lancet, British Journal of Dermatology, JAMA Dermatology, and Journal of the European Academy of Dermatology. and Venereology, Journal Of the American Academy of Dermatology, Journal of Investigative Dermatology among others.