The application process for lash extensions normally takes anywhere from 45 min. – 1.5 hours with someone who is experienced doing these. If you go to a newly certified professional it may take up to 3 hours. You will lay comfortably on a massage or facial table with your eyes closed. The Eyelash professional will then apply an under eye gel pad to cover your lower lashes . Then the extensions will be applied to each individual eyelash on a hair by hair basis.