If your skincare routine hasn't changed since your thirties, but your skin sure has, we need to talk about your skin barrier. I know, "skin barrier" sounds like one of those buzzwords that gets thrown around without anyone really explaining what it means. So let's start there, teacher-hat on, because once you understand the why, the fixes make a lot more sense. What is Your Skin Barrier, Anyway? Think of your skin barrier as the brick wall protecting your house. The "bricks"
