Americans are unwittingly exposing themselves to tattoo inks that contain organ-damaging chemicals, disturbing new research has revealed.

An analysis of 54 inks commonly used in tattoo parlors across the United States has uncovered that a whopping 45 of them contain unlisted additives or pigments, including chemicals known to pose serious health risks.

Researchers found the most common additive to be polyethylene glycol, a compound that can cause acute renal failure. ...

The study, led by Jonn Swierk from the Department of Chemistry at Binghamton University, was published this month in the journal Analytical Chemistry.