The Science of Skin Care
Skin is the largest of the body’s medium-sized organs and performs important functions to maintain itself in a state of homeostasis and health. The skin has many layers and many barriers, all defensive in nature, each with various and interdependent functions, and there is an abundance of cell-to-cell signaling and communication. These normal, important functions can be supported – or too often, disrupted – by external, environmental stimuli. One of the most important of these barriers for the health and appearance of the skin, located in the stratum corneum, is the skin’s principal permeability barrier. The primary purpose of this barrier is to maintain hydration (prevent moisture loss), while keeping out foreign substances (chemicals, microbes and pathogens) that can cause inflammation and set the stage for problems such as Perioral Dermatitis, Acne, Rosacea and a whole host of other inflammatory conditions. Whenever these symptoms are found, it is an indication that this important skin barrier has been impaired.