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The original was posted on /r/science by /u/Wagamaga on 2024-10-01 15:47:23+00:00.

Original Title: Tattoo inks in Europe are mislabeled and some contain banned ingredients. Analysis of green and blue tattoo inks finds 9/10 to violate regulations. Previous research on tattoo inks in the U.S. which found that 45 out of 54 inks didn’t match the contents listed on the label.