Mad scientist kind of moments happen fairly often for nanoengineer Carson Bruns. A few months ago in his lab at the University of Colorado Boulder, he tested his latest invention on his own arm and ...

Rachel Feltman: Nearly a third of U.S. adults have tattoos, so plenty of you listeners can probably rattle off the basic guidelines of tattoo safety: Make sure you go to a reputable tattoo artist who ...

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Problems? There are rashes — itchy, sometimes painful and occasionally disfiguring — which can assume fantastical shapes. Ink reactions also include pseudolymphomas — benign swellings around lymph ...

Those with phobias of needles can now get tattoos without having to worry. Scientists have developed a way to get a permanent tattoo without going under the needle and suffering through hours of pain.

Tattoo artist Selina Medina has been in the business more than 20 years and used to work for an ink manufacturer. She spends a lot of time advocating for tattoo safety, volunteering with several ...