It depends on how you maintain them. Your daily makeup routine. &’ The strenght of your natural lash.
When i used to get mine, i throughly washed it in the morning to prevent any buildup. And a quick rinse at night. I avoid using any eye makeup and applied it only occasionally.
I would get fills about 2-3 weeks.
When i started using lash serums to help strenghten my lashes, i went every 3-4 weeks. &’ My lashes were still at least at 75% during my fills.
I started off doing classic lash extentions, to volume and then mega volume. I was then obsessed with mega volume 🤣
It is expensive as eff! But i managed to do it for almost 2 years haha.
Usually about two weeks depending on how much makeup you wear and how well you take care of them. I hated them because I could not like scratch or rub my eyes. They look so pretty though!