Is Mascara Made Out of Bat Poop? The Guanine Confusion, Explained

No. Mascara is not made out of bat poop. The rumor swaps guano, bat feces, for guanine, a shimmer colorant made from fish scales. Here is the real origin.

No. Mascara is not made out of bat poop. The rumor swaps guano, bat feces, for guanine, a shimmer colorant made from fish scales. Here is the real origin.