draxsmon t1_iwszvq8 wrote
Reply to comment by intengineering in I'm John Swierk, assistant professor of Chemistry at Binghamton University, State University of New York. My team and I are working to understand the molecular composition of tattoo inks to provide a broader understanding to artists and consumers. AMA! by intengineering
Im allergic to PPD. Is that in all ink?
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