Ralph M. Trüeb is Professor of Dermatology. He received his MD and Swiss Board Certification for Dermatology and Venerology as well as for Allergology and Clinical Immunology from the University of Zurich, Switzerland. 1994-5 he spent a year at the University of Texas Southwestern Medical Center at Dallas with Rick Sontheimer and at the Howard Hughes Medical Institute in Dallas with Bruce Beutler to complete his Fellowship in Immunodermatology. After 20 years tenure at the Department of Dermatology, University Hospital of Zurich, where he established and was head of the Hair Consultation Clinic, he established in 2010 his private Center for Dermatology and Hair Diseases in Zurich-Wallisellen, where he offers since 2013 doctors-in-training and dermatologists international traineeships in Dermato-Trichology. He is founding President of the Swiss Trichology Study group (founding year: 1999), and past-President of the European Hair Research Society (2008-11). His clinical research interests focus on hair loss, inflammatory phenomena, hair aging and anti-aging, hair and nutrition, hair care and cosmetics, and patient expectation management. He is currently author of 224 peer-reviewed scientific publications, and 7 textbooks on hair.