Scientists Invent a Patch That Gives You a Painless Tattoos

Unless you’re a professional tattoo artist (or an angsty teenager with a needle and a lighter), you likely haven’t considered inking yourself. But that may change one day: Researchers have designed single-use patches with tiny needles that are easy to use and can deposit tattoos on the skin—painlessly. Though these microneedle tattoo patches will be […]