What is tattoo ink made from?

What is glow in the dark tattoo ink made from?!?

• i have been told it contains nothing radioactive.. but what makes it glow?

• Answer:

  Blacklight reactive ink is a great way to have a tattoo that no one can see but under the blacklight or to add a little something special to your tattoo. From what I have researched, given its extensive testing for FDA approval, with absolutely no adverse reactions to it in over ten years, it is all in the proof, this ink is most likely the safest ink on the market. - It contains NO phosphors - It is NOT radio active - It DOES NOT contain EverGlow - It does NOT cause cancer - It has FDA approval as a Spectral Marking Pigment that was developed for use in tracking animals and fish - and yes the same ones we eat, and has been tested and used with NO adverse reaction in humans for over 10 years. - the florescent dye is completely safe and has NO carcinogen and is human safe and does not spread or “blow out” because the dye is contained in micro capsules