The swapping of cosmetics isn't new, but it's certainly growing in popularity as we all struggle to believe the reality of our bank balances.
I'm all for a bit of style swapping – my friends and I regularly trade unwanted clothes – but I'm still a little unsure of the whole makeup swappery. Do I want someone else's used eyeshadow? Not so much, actually.
But plenty of people aren't as prudish to the whole swap shop idea as me: popular swapping site Makeupalley currently has 312,114 items up for grabs.
So how about you, have you ever swapped makeup online? Would you?