The first eye liner that I have owned that stays on the water line until you remove it. I know that you're not supposed to use it on the water line, but I have done so for almost a year with no problems.

Also the first eyeliner that I have owned that does not smudge. I previously used MAC powerpoint eye pencil; and while I prefer applying eye liner with a pencil, I have noticed that it smudged every day. Fluidline stays put and does not smudge at all. I also noticed that by applying fluidline to my waterline, I'm also able to 'blacken' the inner parts of my lashes that are hard to apply mascara to.

I use this product everyday and have never thought about looking for a different eyeliner to try.

Product packaging is great, especially for MAC as I find their packaging on some products is a bit cheap. Fluidline comes in a nice heavy jar. Just be sure to close the screw cap as soon as possible after use or the product will start to dry out.

Product lasts a very long time, as only a little bit is needed to line the eye.

Is much easier to apply than a liquid eye line, and has more staying power than a pencil.

Yesterday I tried the mac fluid line for my waterline area and went to college afterward. After I arrived at home it kind of smudged on the corner of my eyes so I am not sure about the no smudging part with this product.

Master of all eye liners!
I am in LOVE with this product, not only is it so easy to apply [with a 209 brush or anything similar] but it stays on FOREVER - no smudge no budge! I never have to retouch it even if I've had it on alllllll day! - Now I don't like putting it on my waterline but that is where the mac waterproof eyeliner pencil [or retractable whatever fits your preference]
and i love this product cause they have so many colors! [which you can also use as a base as well] looove it <3 continued >>

I have been searching for the perfect black eyeliner that doesn't smudge and i found it. This eyeliner works better than any eyeliner i have ever tried and i have tried a bunch. The color does come off a little, but it is very little compared to the other eyeliners i have had. Excellent product and i will definitely be repurchasing.

It is amazing. I need so little and it works like a dream. It is really pigmented and glides on smoothly. It even stays on the waterline. The hype is for real guys.
FYI, i used L'Oreal HIP's black gel liner, and I heard that it was identical. It is not. It's close, but I like Fluidline better. Fluidline's consistency makes it easier to work with.

This is an awesome gel liner. It really is a nice true black and wears very well. All I can say though is Coastal Scents has the same thing for $7 and it works just as well so that is why it doesn't get a 5 from me. Really last forever,too. If you were it every other day it will take you 3 years to get through the whole thing! Goes on nicely without any skips. My fav Fluidline is Waveline. It is a pretty purple blue. If you like liners with color to them check out Waveline.

creases
no smudging
ABSOLUTE NO RACOON EYES! YAYYY
super creamy

Best eyeliner ever!. I wore it yesterday to classes and almost every girl asked me which eyeliner I was wearing because it looked great. It stays almost intact in the water line, and that's something no other eyeliner has done before. It is very easy to use, I personally prefer de 210.

The best eye liner I have found. Tried quite a few before my Wedding and found this thankfully! Everyone said I was beautiful and more importantly, I felt beautiful andmy eye make-up had a lot to do with that. I will only buy MAC from now on.

Probably one of the best eye liner i have used! Im totally obessed with this. It makes my asian eyes pop and I believe it's waterproof so it wont run all over your face.

the only thing is.. dont forget to close the lid...cuz I totally forgot and left my first one open for like 2 days.. and it kinda dried out...and ended up getting a new one. but it was very much worth it.