Lash lifting is a perm for your lashes that shapes them into the perfect eye-opening curl. It is fine to use mascara and eyeliner 48 hours after your lash lift(even though you probably wont need to). The lash lift can last 6-8 weeks. It take about 45 minutes to an hour from beginning to end. Maybe take 10-15 minutes more if you decide to have eyelashes tinted which will enhance the effect of your lash lift.