Aesthetic skincare begins with an understanding of the skin’s role in appearance, protection, and function. This book introduces the foundational concepts of skin biology, including barrier function, hydration, sebum production, and cellular turnover. It explains how these factors relate to aging, acne, pigmentation, and sensitivity. Practical sections address cleansing, moisturizing, and protection routines aligned with skin physiology. The content forms the basis for clinical skin assessments and customized treatment strategies in cosmetic dermatology.
Lennard Bosch is a practicing dermatologist with a strong academic background in dermal physiology and skincare science. He has contributed extensively to professional training in aesthetic dermatology through workshops and clinical modules. His publications address the intersection of skincare ingredients and their physiological interactions with the skin. He has worked with multidisciplinary teams to refine patient-centered aesthetic protocols. In his editorial capacity, he has overseen several dermatological texts and reference works. He remains passionate about skin health education and barrier restoration therapies.