Are you wanting longer and fuller lashes in just a few weeks? We have the answer for you. This lash-enhancing serum is full of ultra-nourishing and performance-based ingredients like biotin and amino acids that give you longer-looking lashes with consistent nightly application. The super-precise applicator helps deliver the perfect amount of product to your lash line, and fortifying ingredients help improve your lash line and lash retention over time. It can be used with OR without lash extensions as it has huge benefits either way.