We recommend getting a touch up or “re-lash” every 2 to 3 weeks. If you wait too long your eyelash extensions will shed and you will require a full set. Your natural eyelashes shed every 45 - 60 days due to the natural growth cycle and are naturally replaced with the growth of a new eyelash. Other factors such as exposure to steam or touching your eyes may cause the extensions to fall sooner. A re-lash is needed to fill in any lashes that have shed. Re-lash times average about 45 minutes.