GoKawiil
Tech News
Scientists have created a tattoo ink that remains invisible under normal light but becomes visible when exposed to ultraviolet light, and gradually disappears over time. The development was discussed in a Nature briefing chat covering recent scientific advances.
Nanoscientist Carson Bruns of the University of Colorado Boulder tattooed his own leg with an ink that stays invisible until exposed to ultraviolet light, and can be erased with bright visible light. His team created magenta, yellow and blue versions made of photochromic dye encased in tiny acrylic spheres, tested on pig and silicone skin, with findings published in Matter & Light. Bruns previously commercialized a related UV-reactive ink called Magic Ink through his startup HYPRSKN in 2024.