A California start-up has created the world’s first programmable tattoo ink that can change colors with a smartphone app. The ink contains micro-particles that shift when receiving wireless signals, allowing users to switch designs from black to neon or even display patterns like flames, stars, or digital codes.
Tech enthusiasts are calling it the “future of wearable identity,” but critics fear hacking risks, as tattoos could potentially be manipulated remotely. The FDA is reviewing the technology’s safety before mass rollout.
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