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Tattoo inks used in US may contain cancer-causing chemicals: new study
Think before you ink: New study finds almost half of tattoo inks used in the US could contain cancer-causing chemicals.

Think before you ink.
A new study suggests almost half of all tattoo inks used in the United States could contain cancer-causing chemicals.
Researchers from State University of New York at Binghamton analyzed 56 popular inks often used by American tattoo artists, uncovering that 23 of them have potentially hazardous azo-compounds.
While azo-compounds are not a cause for concern while chemically intact, bacteria or ultraviolet light can degrade them into another compound that is carcinogenic.
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Think before you ink.