Tattoos have become a form of self-expression. Unfortunately, observers mostly misread these inky cues and misjudge the ...

Reactions to tattoo ink are rare, but a team of researchers found some of the dozens of inks they tested contained chemicals or pigments that could cause allergic or other health-related reactions.

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 ...