Tattoos Affect Your Immune System in Ways Scientists Are Just Beginning to Understand

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“Many pigments currently in use were originally developed for industrial applications such as car paint, plastics, and printer toner, rather than for injection into human skin.”

Researchers have detected trace quantities of heavy metals in tattoo inks, including nickel, cobalt, chromium, and, on rare occasions, lead. Accumulated at high levels, heavy metals can be toxic, causing serious health problems such as internal organ damage, neurotoxicity, and increased cancer risk.

In some cases, these heavy metals triggered allergic reactions and immune sensitivity in the person receiving the tattoo.