Temporary tattoos are in again — and this time, with the over-10 set! Researchers have invented a stick-on tat that can track internal pH levels and other metabolic pathways.
Thinking about a new tattoo? It might come with a new (and nasty) infection. The FDA recently recalled a number of contaminated inks that caused bacterial infections. So is it safe to get inked?
Tattoos are permanent, so assuming the whole is-this-professional/would-mom-approve debate has been solved, there's one more hurdle to ta