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Chemicals in tattoo inks need closer scrutiny

white ink. Tattoo artists frequently mix inks to achieve the desired color, so the researchers selected their samples based on the most likely base colors.

Because there have been no previous studies, they are using analytical techniques that can test for a wide variety of chemical components, rather than looking for a specific group of compounds.

"At this point in the study, we have determined that the inks do in fact vary in composition from manufacturer to manufacturer and from color to color," Wagner says. The researchers also have found some indication of the presence of metals, and are in the process of running more tests to verify the identity of the metals.

A number of potential health problems might be stemming from the lack of oversight, according to the researchers. There have been a variety of claims that tattoo inks cause adverse effects in people, including allergic reactions to ink components, a burning sensation during the course of MRIs, and the migration of inks to different tissues in the body, such as the lungs.

It is unclear, however, what the specific causes of these reactions might be, and the only way to gain better understanding is to know what chemicals make up the inks, the researchers say. Finley-Jones and Wagner expect that the variation found in their testing and the potential presence of toxic metals will encourage regulators to begin monitoring the tattoo ink industry more closely.

There are other problems with unknown compositions of tattoo inks. For example, surgery to remove tattoos is becoming more widespread, and not knowing the composition makes the procedure more difficult. "Once the components of a tattoo ink have been identified, doctors removing the inks can use their knowledge of the chemical characteristics of the components to select a treatment that will be most effective and, hopefully, the least painful for the patient," Wagner says.

The American Chemical Society is a no
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Source:American Chemical Society


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