Tattoos are usually considered a form of personal expression, but a team of researchers in Europe have created what they’re calling the world’s first light-emitting tattoo based on OLED screen ...

A group of MIT and Harvard Medical School researchers explored the possibility of color-changing, health-monitoring tattoos. The smart ink can detect blood sugar elevation and dehydration. One of the ...

UV tattoos use a fluorescent dye, which means the tattoo only appears under UV light. There is little evidence on whether UV tattoo ink is safe for human skin. UV tattoos, also known as black light ...

Gone are the days in which tattoos were just permanent wearable decor on one’s body. Now, scientists are hoping to add some function to the permanent skin marking. Researchers at the Technical ...

Scientists in Germany have developed three different tattoo dyes that change color based on the levels of certain health markers in the blood. Scientists are developing color-changing inks that may ...

What’s cool about black light tattoos is the creative, otherworldly twist they can add to your body: The UV ink can be used to highlight specific parts of a tattoo done with traditional ink or form ...