Antonella Tosti is an Italian physician and scientist with major contributions in the field of dermatology. She is the author of several books , e.g. on dermoscopy of hair and scalp Disorders, and the first hair and scalp dermoscopy (trichoscopy). Her major contributions to international medicine include research related to various aspects of hair diseases. A new hair disorder described by Antonella Tosti is often referred to as "Tosti alopecia". Her contributions to knowledge about nails include research about videodermoscopy of the hyponychium and the nail plate. Antonella Tosti is author or co-author of several dermatological monographs and book chapters, including an e-medicine chapter about contact stomatitis. Professor Antonella Tosti is author of over 550 scientific publications. She is a member of the North American Hair Research Society and mentee of Wds mentorship award.