I decided to try out a stila eyeliner, and at first it worked sooo well. It was a rich dark color that stayed on even if i didn't touch up during the day. I thought i finally found the eyeliner to for me. But after some uses (can't approximate how many... mm every other day for 2 months?) it started to break off as i was applying it! No bueno, esp for something i put on the inside of my eyes!