This woman’s boyfriend is a human coloring book. Maggie Moodie broke out her Sharpies and opted to spend hours upon hours filling in partner Scoobie Sousa’s tattoos. Despite the 22-year-old ...

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 ...

Tattoos are fast becoming more than just a means of self-expression: ... Color-changing tattoos monitor blood glucose at a glance By Michael Irving. October 02, 2017 Facebook; ...

Scientists in Germany have developed three different tattoo dyes that change color based on the levels of certain health markers in the blood. One of the dyes responds to pH, and gradually changes ...

BOULDER, Colo. (CBS4)- Imagine a tattoo that could alert you if you need to apply sunscreen or if your blood sugar is low. Sounds like joke, right? But it's not. "I often joke that tattoos can ...