Anna Ezerskaia is currently a third year Ph.D. student in the Optics Research group of Delft University of Technology, the Netherlands. Her research is focused on skin parameters quantification, among them non-invasive IR spectroscopic quantitative analysis and simultaneous detection of skin hydration and oiliness. Anna obtained a Master’s degree in Photonics and Optical Information at the National Research University of Information Technology, Mechanics and Optics, Saint Petersburg, Russia, specializing in terahertz spectroscopic non-invasive diagnostics of atherosclerosis as well as dermatological and ophthalmological disorders.