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 dropping ...

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 ...

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 ...

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 ...

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 healthy you ...

In the tattoo world, there's a common misconception that color tattoos are harder to achieve on deeper skin tones. However, tattoo artists who understand how to properly ink Black and Brown skin have ...

For many people with diabetes, keeping tabs on blood sugar every day is expensive, time-consuming and invasive, but researchers at MIT and Harvard are exploring a creative new approach that could one ...

When a pair of tourists hiking the Alps stumbled across the frozen remains of the mummy Ötzi in 1991 they also, unknowingly, discovered the oldest known examples of tattoos in history. The ...

Tattoos may have been a practice since Neolithic times, but it's only recently that they've become ultra-trendy, thanks to the rise of teeny, tiny tattoos and more relaxed work environments. The ...

Sezin Koehler had the perfect tattoo in mind. She imagined blue and purple swirls rising up her arm to match the colorful tattoos adorning her shoulders. After hours of planning and research, she ...