Glyn MoodyCaveat emptor: 90% of #tattoo inks have unlabeled or mislabeled ingredients - https://arstechnica.com/science/2024/02/caveat-emptor-90-of-tattoo-inks-have-unlabeled-or-mislabeled-ingredients/ yeah, injecting unknown, possibly poisonous substances under the skin always seemed folly to me...
Steve Moore 
@glynmoody
Ink can have microorganisms like mold or bacteria.
per the FDA -"There’s no sure-fire way to tell if the ink is safe without testing. An ink can be contaminated even if the container is sealed, or the label says the product is sterile."
It's likely there is a good dose of -
Heavy Metal - https://journals.sagepub.com/doi/10.1177/07482337221100870