Strategist Explains Our expert staff answers frequently asked questions in their areas of expertise and defines common terms so you can be a smarter shopper. Read more here . Photo-Illustration: The Strategist; Photos: Retailers Barrier repair isn’t the sexiest promise in skin care. It doesn’t smooth wrinkles overnight or make skin instantly brighter. But ask any dermatologist about it and they’ll tell you the same thing: Without a healthy skin barrier , you don’t have healthy skin. “Your