This is absolutely my favorite eyeliner! Thin lines or thick lines, this liner can do it all! Not only that, but it will stay on ALL day! If you put a swatch on your hand & rub it, it doesn't even smudge! I think people that buy $20 eyeliner are crazy because once you try this you will never go back to expensive liners again!
Product: e.l.f. Waterproof Eyeliner Pen in "Black"
Bottom Line: Buy It!