What are lash extension refills?

During refills, we will remove some old lash extensions that are grown out and brittle and ready to come off. Your eyelash extensions weaken over time due to oil or other impurities.
After about three weeks, the bond between the natural lash and extension starts to become unstable and will be ready to come off. Therefore, 2- and 3-week refills are highly recommended to maintain and ensure the retention and life of your lash extensions.