Tattoos have existed since the dawn of humanity, carrying various meanings linked to geographical location, culture, symbolism, etc. They were often applied to serve a protective purpose or to signify membership of a clan or group (such as shamans, hunters or the ruling class). They often carried religious symbolism and served as genuine signs of recognition amongst members of a group or an elite.
Tattoos have continued to diversify and take on new meanings; tattooing techniques have also diversified and have even become a fashion statement and a form of social recognition within certain communities, including religious ones.
The substances used, the various types of pigments and dyes, have diversified, but there is virtually no mention of the effects they have when injected. Cases have been reported of severe allergies, a weakened immune system due to disruption of the lymphatic system with significant effects on the body, depigmentation, etc. The post describes an accessible way to maintain good health even if you have had tattoos.