By Laura Forsyth The iconic London destination for all things fancy, Selfridges has just opened a completely revamped beauty and skin diagnostics hall. It boasts over 300 brands and over a thousand experts to give you a hand with whatever you need. Selfridges has also taken a strong stance on sustainability within the relaunch, taking steps to cleaner beauty with all of their counters pledging to incorporate refill stations by 2025. They have brought together the classic 1909 facade of columns and grand scale. While updating the lighting within the hall for shade matching your ideal foundation…