for your eyelashes? Because i have been told i have really nice skin and eyelashes (lol) so i dont wear foundation or anything - but can mascara make your eyelashes worse in the long run? or even make them fall out, cuz i have really very long eyelashes already.

that foundation thing is a big bunch of bull........and no mascara is perfectly fine

Yes. Clean it off your lashes GENTLY and condition them with a sweep of vaseline at night. Foundation CAN be bad, but it also protects to a degree against muck in the air! I have worn it for years and years daily and my skin looks 20 years younger than my friends the same age. Its all about how well you clean it off after and how you eat and look after your skin otherwise.

I dont think that is true.
My mom is 45.
And has been wearing make-up since she was like 12.
And she still has the same skin and awesomly long eyelashes.