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Neon manicures aren’t just controversial, they could also be illegal—and we don’t mean in the “crime of fashion” sense. The reason? Nobody bothered to register the colorants with the U.S. Food and Drug Administration, according to the Daily Mail. While their chemical composition isn’t any more or less toxic than your standard nail palette, the day-glo hues aren’t entirely kosher if you go by the book. Any neon-esque shade you see in the store is either imported or just really bright, says Jan Arnold, co-founder of Creative Nail Design. Although any company could register a line of neon colors, it’s “expensive and too much work,” he adds. It’s a technicality that Big Government is likely to ignore in small-scale productions. “[The trend] is isolated to a limited section of the population,” he adds. “I don’t see it getting bigger.”

[Via SheFinds]