Lash extensions alone will not ruin your lashes! Damage to the natural lashes is the result of improper application, or the stylist not selecting the correct type of lash for an existing natural lash [Don't worry, we do not do that here at Bombshell. Our tech's are highly skilled professionals and exceptionally trained to maintain the health & integrity of every lash, every time.]
The main factors that contribute to this problem:
1) Applying extensions that are too heavy for the natural lash will result in premature shedding.
2) Rubbing your eyes will result in immediate breakage.
Visiting a properly licensed salon and being serviced by a properly licensed esthetician/cosmetologist who is PROFESSIONALY CERTIFIED in eyelash extensions is crucial when it comes to the health of your lashes!
There are factors that you have no control over (like if you rub your eyes in your sleep or if you genetically have a faster lash cycle than what is considered normal) that can compromise your natural lashes—including causing your natural lashes to fall out or break off. For those reasons you would not be an ideal candidate for eyelash extensions.
Keep in mind though, eyelashes are hair—and unless you have a pre-existing condition or circumstance, hair grows back. Which means your eyelashes will grow back. While damage to your natural eyelashes is certainly not ideal (nor is it sustainable over time), any breakage or fallout should resolve itself in 1-3 months, as part of a typical lash growth cycle.