Which Tattoo Ink Ingredients to Avoid. Tattoo ink is going inside your body so it's important to avoid ingredients that are known carcinogens like acrylics, solvents, and PET plastics.

Using tiny needles, tattooists place the tattoo ink in the dermis along with numerous unknown ingredients. Most tattoos consist of black inks, which are predominantly composed of soot products (carbon black with polycyclic aromatic hydrocarbons).

There are more than 200 colorants and additives used to produce tattoo inks. Most standard tattoo ink colors are derived from heavy metals, including antimony, beryllium, lead, cobalt-nickel, chromium, and arsenic. Other additives include surfactants, binding agents, fillers, and preservatives.

Tattoo ink can cause allergic skin reactions, such as an itchy rash at the tattoo site. This can happen even years after getting a tattoo. Red ink tends to be more prone to allergic reactions that other tattoo ink colors. Skin infections.