Summary
Skin barrier, the outermost layer of our skin is our body's frontline defense system. We interact with the environment through our skin barrier, every skincare product that we use works mostly on our skin barrier. All this makes it really important for us to understand what is skin barrier, what are its important functions, what can damage our skin barrier, and how we can protect our skin barrier. We have tried to answer all these questions in this guide about the skin barrier.