Dry skin and the environment

In this theme issue of ‘Exogenous Dermatology‘ leading experts discuss the influence of environmental factors on dry skin. In the first paper a comprehensive overview of the epidermal barrier function and its regional variations is given. The following article discusses the biomechanics of water and stratum corneum (SC). Subsequently the influence of seasonal changes on skin properties is discussed, and the fact that the ceramide content in the SC is associated with the regulation of SC hydration is reported. The final paper informs on eczema and other dry skin conditions where moisturizers are commonly used. This publication provides in-depth knowledge on the importance of the maintenance of the equilibrium of SC hydration and epidermal barrier function. It will be essential reading to dermatologists, occupational physicians, allergists, toxicologists, pharmacists, microbiologists and scientists in the pharmaceutic and cosmetic industry.