Professionals in body care, pharmacists, and dermatologists need solid foundational knowledge of the chemistry of body care products and the biochemistry of human skin. This knowledge enables them to understand interactions between skin and cosmetics, take them into account in their work, and provide competent advice to their clients and patients. Reading this successful textbook allows readers to critically assess the ingredients of cosmetics and deepen their scientific knowledge. The expanded new edition incorporates current research findings in the fields of skin biochemistry and cosmetology, which are clearly illustrated and described. Content includes: Chemical structure of the skin.