my tattoo artist applied the patch onto my skin and told me to use it for a minimum of two days and a maximum of four - whatever I felt the most comfortable with. The application was simple ...

Super-thin smart tattoos are not new. Consider cosmetics giant L’Oreal’s patch that monitors exposure to the sun’s UV rays, this temporary tattoo that unlocks your mobile phone and this ...

We report three patients with permanent tattoos and chronic dermatitis. During patch testing, the patients' dermatitis worsened, and the previously quiescent green-colored portions of the tattoos ...