Allow me to introduce you to my new favorite eyeliner.
This is the Benefit Babe Cake cake liner duo, and it is awesome.
You'll have to excuse the usage, I normally like to take photos before I delve into a product, but my camera randomly freaked out on me and decided to just lose about 200 photos I'd taken for the blog, so I had to go back and re-take them.
...Moving right along, here's a shot of the back...This stuff goes on crazy creamy and dark, though you DO have to take care to get it wet and mix it enough. I use a small refillable perfume sprayer full of water. I just spritz a spray on whatever side I feel like using that day, then mix it up with my brush and apply just like I would a gel liner.
You can get razor thin lines with the stuff, and the color comes out gorgeously matte and dark, but you can add a bit more water to the mix to get a more sheer, build-able effect. While it does take a few times applying this to get used to it, I find that it is cleaner and easier to apply than gel liner and that it has a ton more staying power when dry. Definitely recommend!