Scientists have created an innovative tattoo ink that can be made to vanish and re-emerge on demand, offering a potential breakthrough for temporary body art and medical applications. The ink responds to external stimuli, allowing users to control its visibility without altering the skin. This development could revolutionize fields like medical marking, where temporary identification or tracking is needed. Researchers emphasize its potential for reducing waste and improving flexibility in both cosmetic and clinical uses.
New tattoo ink developed that makes them disappear and reappear Newstalk
