How does a tattoo work? How is it applied?
A tattoo is applied using small groupings of very fine needles. The needles move up and down at a high speed and prick the skin. Because the needle is dipped in ink, the pricking motion deposits some of that ink into the skin. It’s the second layer that actually holds ink. The first layer of skin heals over the ink, which is why tattoos on those with darker skin tones sometimes look light. It’s because the first layer contains natural pigments and, when they grow back over the tattoo, can create an effect like looking through smoked glass.
