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Tattoo inks deliver pigments and additives directly into the skin, establishing a long-lasting route of exposure to potentially carcinogenic and toxic chemicals. Despite growing evidence of health risks, Australia remains unregulated in this area, unlike the European Union, where strict chemical limits on tattoo inks have been enforced since 2022. We analysed fifteen black and coloured inks available in Australia using inductively coupled plasma mass spectrometry and untargeted liquid chromatography-tandem mass spectrometry. Eight of thirteen regulated elemental substances, including antimony, arsenic, cadmium, chromium, copper, lead, selenium, and tin, exceeded European Union thresholds in at least one sample. Several pigment metals (titanium, aluminium, zirconium) were also detected at extraordinarily high levels, although not currently regulated. Untargeted LC-MS/MS identified compounds listed in EU2020/2081, including toluidine and sulphanilic acid, as well as other suspected toxicants. Together, these findings show that all inks tested would be prohibited under EU regulations, revealing a clear gap in Australian oversight. The results highlight an urgent need for harmonised international standards and routine compliance testing to reduce unnecessary toxic exposures from tattoo inks.
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