how long will fake eyelashes stay on
You put them on at the lash line on your eye, with adhesive/glue or some have adhesive on them. I usually put mascara on afterwards, but you can do it either way. They can stay on 1-2 days, but will usually start falling off after you've slept in them the 2nd day.Source(s): ambr123 Â· 9 years ago.ry getting eyelash extensions they last for at least 2 months if your looking to keep them for a while. And false eyelashes look overly fake, unless done by a professional. Source(s): https://www.lashcloset.com/product/indiv...