What MAC says:
"An eye pencil that provides rich luxurious color with a touch of shimmer and sparkle. Soft, smooth creamy formula glides on for a perfectly intense line yet its soft texture allows you to blend. Long-wearing. Smudge-proof."
Undercurrent is a beautiful sparkly teal. It has a sheen to it that's difficult to catch with a camera. This pencil is a liner, but can also be used as a base. It's actually a re-promote from the MAC Art Supplies collection a while back. (There were so many items from that collection I could have kicked myself for not getting.) Anyways, the liner is very blendable and smudgy before it sets, and it definitely does have a good wear time. It lasted a good four hours on me without fading or moving any, which is actually better than the 24/7 liners.
|with flash to show sparkle|
|in normal daylight|
|after the smudge test! (i.e. allowing it to dry then rubbing it viciously)|