I have been using this eyeliner since high school and I have yet to find one to replace it. I will say that "smudge-proof-eh.... I do find that after a few hours, it kind of pools up in my outer corners and that I have to reapply it. But it goes on so smoothly and you can really build the color as much as you want, from barely there to super dark. Like I said, I have been using this for close to 7 years now and I still love it.