Just like the food in your fridge, beauty products have a shelf life. If you know that there are products lurking in the back of your cupboards that are more than a few years old, it’s probably about time to throw them out. That includes your favourite lipstick that you’ve had since 2002! And those make-up brushes that have never been washed? They’re in serious need of a clean. We’ve got the low-down on how long
