John Swierk is an assistant professor of chemistry at Binghamton University, State University of New York. Tattoos are an incredibly common form of permanent self-expression that date back thousands ...
What's in your tattoo ink might differ from what the label claims. Over 80% of the inks analyzed in a recent investigation have been found to contain unlisted additives and pigments. John R. Swierk, ...
Tattoo ink ingredients don't always match what's labeled on the bottle. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Tattoos are an incredibly ...
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