An infill is needed every 2-3 weeks, depending on how fast your eyelash growth cycle is and/or how you practice aftercare. On average, you shed approximately 1-3 lashes per day. When lashes fall out, the lash extensions go out along with it because it is glued onto your individual lashes. New lashes will grow to replace them, and these are the lashes that we can use to do infills once it is long and healthy enough to do so. The natural lash growth cycle: 1 Week – You will l