Eyelash extension retention varies depending on your after care and skin type. Eyelash extensions are applied to each of your natural lashes and they will last through your natural growth and shed cycle. That being said, each persons cycle is different so it varies, most people will lose 3-8 lashes per day. If your extensions are not taken care of properly then you will lose more than usual do oils building up and slipping the lashes off and breaking down the glue.
Fills are recommended every 2-3 weeks to keep a full and beautiful look. We schedule our eyelash fills at different times based on how long it has been from your last appointment. Two week fills are 45 minutes, three week fills are 1 hour and four week fills are 1.5 hours.
Lash extension glue is designed to hold for up to eight weeks so many people find that after experiencing really good retention the may go thru a faster shed at some point, we recommend coming in for a 1.5 hour fill appointment at least every six months to accommodate for the extra shed.