Wanted to pick up a couple of pencils at Sephora this week. I picked up MUF Aqualine pencil in a mossy green, which I like. Good for the rims of the eyes but will NOT even go on the waterline. Glad I got it for the rims though. My next purchase was the UD glide-on eye pencil in Perversion since the store was out of Zero, my favorite. How is this different from Zero? The only thing I noticed right away was smudging. My zero didn't do that. I'll still use this one up, but I don't understand why this one gets good reviews.

I don't get the bad reviews :-/ but everyone is different so obv people's experiences will also differ. I'm in the lucky few who adore this product! It's the blackest black eyeliner I've EVER come across, awesome for smokey eye designs!
I used this last night on my waterline and upper waterline and was astounded. This glided on silkily smooth, no tugging whatsoever, and it didn't budge. I had zero smudging, and no issues whatsoever!

FYI, I have combo skin (dare I say it, but bordering on normal!!) spot prone etc, so not oily lids or anything. Maybe that's why I'm lucky, I dunno! But this is my all time HG black eyeliner from now on!!!!!

Such a shame about this product, it's sooo very soft and black and easy to apply and potentially awesome, BUT. It smudges like crazy (I've tried everything - with primer, without primer, setting it with powder eyeshadow etc, nothing works) and it totally ruined my contact lenses. The liner didn't stick to my waterline but it did stick to my contacts so well it was impossible to get it off :( I would love to wear this liner but it just does not work for me at all.
And I suppose it's worth mentioning I haven't had the same problems with other UD 24/7 liners or any other brands I've tried.

This eyeliner glides on effortlessly and looks so dark and opaque but it get on my contacts! Just like the Milani liner did :( After a few minutes of putting it on an oily film gets in my eyes and everything's blurry. I wish they could fix this because it is a great liner!

Blackest eyeliner I had but unfortunately I had to return it since it does not stay on my waterline for more than one hour and leaves nasty residue on my tear duct.
Would buy again if the formula changed and it stayed better on my water line.

An expensive eyeliner (I think it was £14 or £16), but well worth the price. This eyeliner is the blackest of matte blacks, so much so that when I'm wearing it people often think it's liquid eyeliner. Goes on ultra-dark in one stroke, and much better than Urban Decay's regular black eyeliner, Zero. Despite its high pigmentation, it doesn't stain at all. Packaging was holographic and pretty but nothing special. I would definitely buy this again.

This is one of the best pencil liners I've ever used - it's so good that I foolishly try to "save" it for special occasions, which is dumb!
It goes on smoothly, and once it is set, it does not budge, and I love that it is SO black!
Goes well with my dark brown eyes and NC25 complexion.

A definite keeper!

DUDDE, I don't even know what's wrong with me.

I think it might be just me because I am notoriously doomed with eyeliners, but this eyeliner was pure suck. I tigh line because my eyes are tiny, and it's basically the only flattering look on me. I tightlined with this and 2 hours later it was completely not where I put it. It was all over my facking eye. It has also stained where it was sitting so it was a bitch to take off.

I AM DOOMED, DOOMED I TELL YOU. I'VE TRIED EVERYTHING!

My mom gave this to me after realizing that she didn't REALLY love the intense black of this pencil. It is SERIOUSLY black, with a dark, almost blue undertone. But I love it! It's softer than many of the other 24/7 pencils in that it is very much like a kohl. I love using an angled eyeliner brush with this in an almost gel-liner sense to wing out my eyeliner. It looks like gel eyeliner! And it stays very well, surprisingly (Zero did not stay well on my lashlines). I use this for tightlining and it stays all day with minimal fading and stays on my lower waterline too. I love this!

I have never seen any other eye pencil or liner as black as this... i mean this is seriously black in ever true sense possible.
I have brown eyes and when i wear black in the inner rim and line by lower and upper lids, it shows as a light brown.... but with perversion, my brown eyes look hazel.
But I still did not like it because I think its just too harsh a color.. i never thougth I would say that about black eye liner.
Other -ve points are - sharpening at every use, cannot remove easily even though I only use water proof eye liners and I know how to remove them, smudges on the water line
+ve - Blacker than the blackest black u will ever find, smoooooooth and creamy, doesnt budge from the skin part of the eye..
Oh I wouldnt buy this again... I am happy with my blacktrack!