5 Key Takeaways

• 1

  The study measured systemic exposure to tattoo ink tracers at 0.31 g per session, significantly lower than the previously estimated 4.31 g.

• 2

  Researchers investigated the absorption, metabolism, and excretion of tracers like potassium iodide and PABA in a clinical trial with 24 participants.

• 3

  Tattoo inks were applied by professional artists to participants' skin, with blood and urine samples collected over 48 hours for analysis.

• 4

  All tracers or their metabolites were detected in urine within 24 hours, indicating systemic absorption post-tattooing.

• 5

  The study highlighted the role of cutaneous metabolism and ink exudation in reducing systemic exposure to tattoo ink components.