I first discovered YSL Volume Effet Faux Cils Mascara (£26) after a friend of mine accosted a girl in Harrods to ask where her amazing mascara came from. The original is brilliant, but the Babydoll version does away with the classic brush in favour of a plastic bristle one, and that makes it even better in my book. This is the mascara I wore on my wedding day, and it's the one I go back to again and again, no matter how much I try to wean myself onto more affordable options! — GC