PhotoTat ink can reveal and hide tattoos using different kinds of light

Matter & Light describes PhotoTat as permanent yet rewritable, with potential uses for body art, permanent makeup and medical tattoos.

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TLDR

Cell Press News introduced PhotoTat, saying the ink can reveal and hide tattoos using different kinds of light. Matter & Light describes it as permanent yet rewritable, bringing light-rewritable, multicolor images to skin and pointing toward uses in body art, permanent makeup and medical tattoos.

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