What is our skin barrier?
What is our skin barrier? Our skin barrier is the outermost layer of the skin, known as the stratum corneum. It acts as a physical and chemical barrier that helps to protect the body from the external environment. The stratum corneum is made up of dead skin cells that have been pushed to the skin's surface and lipids (fats) produced by the skin cells. These lipids, which include ceramides, cholesterol, and fatty acids, form a barrier that helps to retain moisture in the skin [...]