What is mascara made from bat poop?

There is a myth that mascara contains bat guano (poop) as an ingredient. However, this is not true. Mascara is made from a combination of waxes, pigments, and oils that are safe for use on the eyes. The idea that mascara contains bat poop likely stems from the dark color of mascara and the misconception that guano is used as a pigment. In reality, guano is not used in cosmetics and mascara is not made from bat poop.