A person applying the color-changing tattoo, and a color chart for the medical-alerting tattoo. Ali Yetisen et al. Soon, tattoos won’t just show how cool you are — they’ll also show how ...

All of these tattoos include color and will cost $150 a piece. You can only get your tattoo on your arm or leg to get the Friday the 13th special. Embedded content: https: ...

Tattoo shops in and around Nashville are gearing up for Friday the 13th sales. ... Black and gray tattoos will be available for $80, and color tattoos will be available for $100.

This tattoo ink changes color when blood sugar levels rise or fall, so people with diabetes can monitor in real time. The post had been shared more than 300,000 times as of 28 June 2017, ...

The first examples of color-changing nanotech tattoos have been developed over the past few years, and they’re not just for body art. They have a biomedical purpose.