Eyelash extensions add length and diameter to your natural lashes. I will place one mink lash to one single natural lash during the application. Typically takes 2 hours using Formaldehyde free, medical grade,and cruelty free products only.These lash extensions will remain on the natural lash until the natural lash sheds. Natural lashes have a life cycle of around 4-6 weeks. Refills can be applied before the full set of lashes have fallen out, approximately 2-4 weeks after your initial service.