Latisse and other eyelash growth product.

OK, this stuff freaks me out. So you brush this liquid on your eyelid, and you magically grow hair. What?! And, just as a side note, it is gonna make your eyes darker and make you look like you are constantly wearing eyeliner. The last bit isn't that bad, but literally make the iris darker? Does this not scare anyone?
Additionally, if we can make eyelashes grow in greater quantity, why can't we apply the same technology to your grandfather's head and give him a nice lush combover? Hey, I'm just asking.
Now to make matters even weird, L'Oreal has come out with a mascara-esque treatment that also claims to make you grow more lashes that are fuller and don't fall out as much. Weird! You were the stuff twice a day and in a month you have more lashes. I'm sorry, but that just freaks me out!