Latisse will notmake your lashes fall out but you need to remember, as others have pointed out,that all hair goes through cycles, and losing some hair during this process isnormal. But it is not from the Latisse.
Latisse grows the hair, it will not makeit fall out. Hair does fall out in cycles. However due to the long length ofthe eye lashes it could look like the hair is falling out more than usual.