Elena I. Hernandez-Jimenez, Ph.D. Biophysicist, scientific journalist. Editor-in-chief of Cosmetics and Medicine Publishing. Chairperson of the Executive Board of the International Society of Applied Corneotherapy (I.A.C.). Author and co-author of numerous publications in professional magazines, co-author and editor of the book series Fundamentals of Cosmetic Dermatology and Skincare, Cosmetic Dermatology and Skincare Practice, Cosmetic Chemistry for Dermatology and Skincare Specialists and others. Speaker at international conferences, author of training seminars and webinars for professionals in the field of skincare. Professional interests: biology and physiology of the skin, skin permeability, cosmetic chemistry, anti-age medicine, physiotherapy in dermatology and aesthetic medicine, skin analysis and imaging. Ekaterina M. Rakhanskaya, M.D. Neurologist, radiation safety specialist, scientific journalist.