Hello guys! Today I was going through my makeup stash and I found two eyeliner that looked exactly the same. Last Christmas Mac came out with this really popular eyeliner, which was sold out pretty fast called Undercurrent. It's a really pretty teal green with microglitters in it; it goes on smoothly and it's long lasting.
I found a pretty similar eyeliner dupe for it, and it's from E.L.F Cosmetics called Twinkle Teal. The amazing thing is that it costs $1 in the US and the Mac one costs $14.50!
The only difference I could find between the two is that the E.l.f one smudges easily, but if you put a primer underneath, you won't have a problem.
I hope that was helpful.