Yep. It works.
I was on the hunt for a waterproof eyeliner and mascara to wear to The Eras Tour, knowing full-well I was going to be crying like a teenage girl going through her first breakup (as a near 40 year old woman). I can confirm - these don’t budge. Even after I rubbed my eyes, barely any movement. Washed off pretty well with make up remover, but my eyes were a little puffy afterwards cuz I used way more...