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Tattooing practice is adopted worldwide and represents a socio-cultural phenomenon, but the injection into the skin of coloring agents, such as metals might pose a serious health problem. Tattoo ink compounds are in general not officially controlled. Moreover, the origins as well as the chemical and toxicological specifications of these coloring agents are hardly known by the producers, the tattooists and by the consumers. In this view, the aim of this study was to characterize the metal composition of tattoo inks available in the market and to draw attention to the associated risk for human health.
A set of tattoo inks from the brand Kuro Sumi was analyzed by means of Synchrotron-based X-ray Fluorescence spectrometry (Sy-XRF) at BAMline @ BESSY II and Raman Spectroscopy using the XploRA confocal Raman microscope (785 nm laser) at the LIBPhys-UNL. Carbon black, rutile, phtalo blue, phtalo green, helizarin red, helizarin yellow and dioxazine violet were respectively identified in black, white, blue, green, red, yellow and violet inks. However, a wide range of transition and heavy metals, potentially hazardous was revealed by Sy-XRF. A semi-quantitative evaluation has revealed, in some inks, amounts of Cr, Cu, Zn and Pb higher than the allowed according to the resolution adopted by the Council of Europe on the safety of tattoos and permanent make-up.
Toxic metals in tattoo inks
(2016)
Tattooing practice is adopted worldwide and represents a socio-cultural phenomenon, but the injection into the skin of coloring agents, such as metals might pose a serious health problem. Tattoo ink compounds are in general not officially controlled. Moreover, the origins as well as the chemical and toxicological specifications of these coloring agents are hardly known by the producers, the tattooists and by the consumers. In this view, the aim of this study was to characterize the metal composition of tattoo inks available in the market and to draw attention to the associated risk for human health.
A set of tattoo inks from the brand Kuro Sumi was analyzed by means of Synchrotron-based X-ray Fluorescence spectrometry (Sy-XRF) at BAMline @ BESSY II and Raman Spectroscopy using the XploRA confocal Raman microscope (785 nm laser). Carbon black, rutile, phtalo blue, phtalo green, helizarin red, helizarin yellow and dioxazine violet were respectively identified in black, white, blue, green, red, yellow and violet inks. However, a wide range of transition and heavy metals, potentially hazardous was revealed by Sy-XRF. A semi-quantitative evaluation has revealed, in some inks, amounts of Cr, Cu, Zn and Pb higher than the allowed according to the resolution adopted by the Council of Europe on the safety of tattoos and permanent make-up (PMU.
Synchrotron radiation X-ray fluorescence spectroscopy, in conjunction with atomic absorption and Raman spectroscopy, was used to analyze a set of top brand tattoo inks to investigate the presence of toxic elements and hazardous substances. The Cr, Cu, and Pb contents were found to be above the maximum allowed levels established by the Council of Europe through the resolution ResAP(2008)1 on requirements and criteria for the safety of tattoos and permanent makeup. Raman analysis has revealed the presence of a set of prohibited substances mentioned in ResAP(2008)1, among which are the pigments Blue 15, Green 7, and Violet 23. Other pigments that were identified in white, black, red, and yellow inks are the Pigment White 6, Carbon Black, Pigment Red 8, and a diazo yellow, respectively. The present results show the importance of regulating tattoo ink composition.