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A swipe of a red lipstick may have a transformative effect like no other, but could your signature crimson pucker be responsible for less-than-desirable changes, as well? A recent investigation by Good Morning America revealed that 12 of 22 of lipstick samples—or 55 percent—contained trace amounts of lead, some as high as 3.22 part per million. Lead is a potent neurotoxin that can cause learning, behavioral, and other problems, but even the worst offenders aren’t guilty of anything illegal. Although the U.S. Food and Drug Administration suggests a lead limit of 0.1 parts per million for candy, the cosmetics industry isn’t beholden to any such threshold outside of California. (The Golden State recommends a maximum of 5 parts per million.) And because lead is considered an “unintended” byproduct of the manufacturing process, cosmetics manufacturers aren’t required to declare it on their ingredient labels.