Chemistry researchers found as much as 90% of tattoo inks in the U.S. might be mislabled, with some containing substances that could cause allergic reactions.

Among all the ink samples, 49 were labeled "sterile" and, of those, 16 (33 percent) were contaminated. The recall announcement noted that Sierra Stain is no longer in business.

Sealed bottles of tattoo and permanent makeup ink, including some marked as sterile, contained millions of potentially dangerous bacteria, according to new research by the US Food and Drug ...

The Food and Drug Administration is warning tattoo artists and their clients of issues with two specific colors of ink that may cause infections. In an announcement made Wednesday, the FDA says ...

The pigments in many tattoo inks are made up of synthetic molecules. Amy Harris/Invision/AP. Regulations in Europe prohibit the use of copper-containing pigment blue 15 and pigment green 7, which ...

But while tattoo artists are required to have a license in all 50 states and the District of Columbia, tattoo ink is totally unregulated in the United States. Dr.

Sealed bottles of tattoo and permanent makeup ink, including some marked as sterile, contained millions of potentially dangerous bacteria, according to new research by the US Food and Drug ...