What is in mascara?

well when i went to out door ed my naturalist told me mascara was made of bat poop. Guanine is a product that was once extracted from bat guano--they make it synthetically now--that gives a pearly look to all sorts of things. Mascara contains several basic classes of ingredient: colorants to make your lashes pretty film formers to keep it on your lashes waxes to make your lashes thick various other chemicals to keep it liquid, kill germs and all sorts of other useful things.