Here's the bad news: Cow brains may be an ingredient in your lipstick. The good news? The FDA is banning it. The Food and Drug Administration has told cosmetics makers they can no longer use brain and spinal cord tissue from older cattle in lipstick, hair sprays, and other products, reports The Associated Press. The fact that they were used at all will likely surprise millions of women who use these products daily. And that's not the only surprise: The new FDA regulations still allow use of these animal tissues in cosmetics as long as they come from younger cattle.