I recently got the MAC Fluidline gel eyeliner in Blitz &Glitz. Let me start off with the fact that I have very watery and oily eyes and I wear my eyeliner on my waterline; this is the only eyeliner I’ve found that stays on the waterline for more than an hour or so AND doesn’t smudge and crease in the wrinkles under my eyes. [I can’t sleep, okay. xD]. I found that you need to go vertically as opposed to horizontally; aka apply it in short strokes going from the inner edge of your waterline closest to your eye, to the lashline. This makes the colour show up much better. I am in love with this liner. It’s $15, and it seems that there isn’t much in the jar, but there is. Ve hardly used any and I bought this at the beginning of May. And used it every day since. Don’t get me wrong; your waterline will not stay black all day. It will fade to a grayish colour, but it is still visibly there with no smudges after approximately 14 hours. [the longest I went without washing it off, that i’d checked.] I was incredibly skeptical when purchasing, but I’m definitely buying this liner again. :]