Jesse's Girl claims that this is a waterproof eyeliner that has a unique brush tip similar to Japanese calligraphy brushes. This is quite different than other liquid eyeliners I've seen because every other one I've used has a pen tip, like a thin marker, instead of a thin brush tip.
I've been wearing this liquid eyeliner for over a week, and I actually quite like it. The only problem? It definitely is NOT waterproof. I don't understand why it claims to be waterproof, when it clearly isn't. I used my own spit (yes, it's nasty), and I also ran it over water, and the liner comes off like it was never meant to be waterproof.
Here's a video I recorded of the liquid eye liner where I show you how it's not waterproof.
There are no smudges, and it lasts all day.
Overall I like this eyeliner a lot. This is probably my favorite liquid eyeliner that I've tried so far, and I would repurchase it again. The waterproof claim doesn't bother me since I don't care for waterproof eyeliner, but it is definitely misleading. This is definitely a try, and is pretty inexpensive too! :)