A few years ago, a team of European researchers discovered nanoparticles from tattoo pigments seem to be able to travel from a tattoo site into a body’s lymph nodes. A new follow-up study has now ...

But it's not just that ink is capable of reaching the body's lymph nodes, as researchers previously revealed. Tattoo needles – even new ones – also may be playing a role. Tattoo needles typically are ...

Photo credit: EPHEMERAL TATTOO; BEN HUA YU; CHLOE KRAMMEL/MEN'S HEALTH ILLUSTRATION WHEN I first heard of Ephemeral Tattoo, I thought it was just like any other temporary tat—fun little "tattoos" made ...

Destin Sandlin, host of the YouTube show Smarter Every Day, recently devoted an episode to exploring an interesting topic: the science of tattooing. The episode, above, explores a few different ...

As tattoos gain popularity, dermatologists explain health risks linked to hygiene, ink reactions, infections, scarring and ...

Nanoengineers at the University of California, San Diego have tested a temporary tattoo that both extracts and measures the level of glucose in the fluid in between skin cells. This first-ever example ...