Researchers from the European Synchrotron Radiation Facility in France say the chemicals in tattoo ink can travel in the blood stream and accumulate in the lymph nodes, obstructing their ability to fight infections.
Their report, published in peer-reviewed journal Scientific Reports, noted ink can contain tiny particles of heavy metals such as nickel, chromium, manganese and cobalt, as well as other toxic impurities.
One colour was far more dangerous than the rest.
Titanium dioxide, which is a chemical commonly used to create white ink, is known to increase a person’s risk of developing cancer.
It also causes itching, skin irritation, and delayed healing.
The reality is very little is known about the potential impurities contained in the different colours of ink applied to the skin.
Scientists in France and Germany used X-rays fluorescence measures to detect the tiny particles, and they reported strong evidence to show tattoo ink migrates around the body before creating deposits.
They believe it is transported in the blood stream.
Carbon is the most common ingredient in ink to create black, closely followed by titanium dioxide to create white Picture.
Only microscopic nanoparticles were actually found in the lymph nodes, which are located in the neck, armpit and groin.
Source : Health Journals