The difference between tattoo ink and Hair Tattoo Pigment:
Ink is made with a lot bigger molecules and the body can not break it down. That’s why it lasts forever! Whereas the pigments are made with a lot smaller molecules and your body is able to brake it down, and that’s why it fades after some years.
The problem is as we get older the skin changes. But tattoo ink still stays in the same place.
Here is the Microscope image of tattoo ink and white blood cells. which are a lot bigger and white blood cells are not able to break them.
If you have further questions about difference between tattoo ink and Hair Tattoo Pigment you can ask them at your free consultation session.