It CosmeticsSuperhero Liquid Eyeliner Pen, Black - 24-Hour Waterproof Formula Won’t Smudge or Fade - With Peptides, Collagen, Biotin & Kaolin Clay - 0.03 fl oz

The best liquid eyeliner. Goes on smooth. Can make the line as thin or as thick as you like. Stays on all day, never smudges or runs. Removes easily with gentle makeup remover. Last a long time!

Excellent. Stays on well and easy to apply.

The bristle of the eyeliner is flexible and allows smooth lines without them being jagged. Stays on all day.. having been using for years and have tried other options but this is is best

I hesitate to review before using this for a while. I hope it lasts as long as my first purchase at Ulta. Time will tell. I love this brand as the liner goes on so smoothly, doesn't drag on the lid.

Lasys for more than 24 hours

I do love this pencil; the tube is nice and long, and the eyeliner is super black. It is precise, it goes on well, it stays on, and thank god it does not smudge. If you put it on at 8am, and don't sweat too much, it will look good by 5pm. I love it love it so much. I do like to re-apply again mid-day but that's just for fun and for emphasis, not necessary. Long-lasting. Comes off with make-up wipes, and looks beautiful.

I love the product itself and have been using it for years. You get crisp lines and it's a long lasting eyeliner. However, when I.T. changed the packaging to a slim version (previous version the top and bottom was more flared out), I noticed the pen runs out of liquid far quicker than the previous version and is also prone to leaks. I had to return 1 out of the 3 pens I bought due to a leaking issue. I find myself purchasing the product more frequently which I don't appreciate (likely the cartridge capacity shrank). If they can address the leaking issue that would be ideal. I recommend the pen itself but sometimes you may get a defective product.

I like this eye line. It glides smooth and smudge proof. I have allergies and need water resistant eye make up. This works for me.