For over a decade, John Barrett has been the hair-extraordinaire behind some of the world's most fabulous fashionistas. Known for paying superior attention to what women want, Barrett believes hair should be the glamorous extension of who you are inside—and we couldn't agree more. His sumptuous salon, located in the penthouse of Manhattan's Bergdorf Goodman department store, was once the private pied-a-terre of the famous Goodman family. It's only natural that his eponymous product line would be just as luxe as this locale, no?