You know that little pop of colour you see at the bottom of certain lipstick tubes? It turns out it's not just there to help you pick a shade; it actually contains a little bit of bonus lip gloss.
According to Revelist, the little pot o' gloss in the bottom of the tube is put there to show the lipstick's colour, and it's completely safe to use. It's most common in pharmacy brands -- like e.l.f. -- which makes an already good deal even better. Just pop off the bottom, swipe it on and smile pretty (or don't) knowing that you just got a little more bang for your buck.