In a new study, German researchers were able to track how the liquid components of tattoo ink behave in the body. Scientists in Germany’s Federal Institute for Risk Assessment, or the BfR ...

It’s a good question, and there’s actually some pretty interesting science behind it. E-ink devices use electronics and actual ink to mimic the look of ink on a paper page. It’s not perfect ...

That is the motto of Ephemeral, a cosmetic company that developed a made-to-fade, semi-permanent tattoo ink in 2014. But some customers who were told their tattoos would disappear within 9-15 ...