Professional semi permanent individual eyelash extensions by market leading uk brand lash perfect applied by qualified therapeutists how long do the eyelash extensions last generally lash perfect eyelash extensions can last up to 3 4 weeks from time of application the lifetime of your lashes depends on your hair growth cycle and lifestyle a regular maintenance programme every 2 3 weeks can extend the life to 8 12 weeks cancellation policy free cancellation before redemption show mo