Lvl lashes the latest in eyelash perm treatments what does lvl stand for lvl stands for length volume and lift this is a groundbreaking eyelash lifting treatment an lvl lashes treatment in my london clinic takes approximately 45 minutes to apply and up to 60 minutes with a colour boost it can last up to 6 weeks depending on you own lash cycle this treatment is done on your own lashes no false lashes or extensions it is designed to give your own lashes a lift by straightening and