Long long ago I was a tattoo artist. With very careful needle adjustments, color choices, and a steady hand, this is already possible with conventional inks. Simple example: white ink is titanium oxide, basically sunscreen, and breaks down rapidly with exposure to UV.<p>But you are still gonna have scarring and roughening. If you&#x27;re gonna get ink, be prepared to have it for life.<p>Also, testing on pigs? Like, live pigs? I&#x27;d pay money to see that. :)