Sharpie and Your SkinAccording to Sharpie's blog, markers that bear the ACMI "non-toxic" seal have been tested and deemed safe for art, even by children, but this does not include body art, such as drawing eyeliner, filling in tattoos or making temporary tattoos. The company does not recommend using the markers on skin. In order to bear the ACMI seal a product must undergo toxicological testing for the Arts and Creative Materials Institute. The testing is concerned with inhalation and ingestion of the materials and not absorption into the bloodstream, which could occur if chemicals in the marker permeate the skin or enter the body through broken skin.
Sharpie IngredientsSharpie pens may contain n-propanol, n-butanol, diacetone alcohol and cresol. Although n-propanol is considered safe enough to be used in cosmetics, the other solvents may cause reactions or other health effects.
Three types of Sharpie markers contain xylene (see MSDS), a chemical capable of causing nervous system and organ damage. Only the King Size Sharpie, Magnum Sharpie and Touch-Up Sharpie contain this chemical.
Some tattooist use Sharpies to draw designs on the skin, but at least one professional warns against using the red markers because the ink sometimes causes problems with the healed tattoos, sometimes long after the tattoo has been inked.
Removing a Sharpie TattooFor the most part, it's the solvents in the ink of a Sharpie pen that present a health concern more than the pigments, so once you've drawn on yourself and the ink has dried, there is not a lot more risk from the product. It appears reactions to the pigments are uncommon. The pigment only penetrates the top layers of skin, so the ink will wear off within a few days. If you wish to remove the Sharpie ink rather than let it wear off, you can apply mineral oil (e.g., baby oil) to loosen the pigment molecules. Most of the color will wash away with soap and water once the oil has been applied.
Additional ResourcesTattoo Ink Chemistry
Tattoo Ink Carrier Chemistry
Tattoo Ink Safety Concerns
Red Ink and Tattoo Reactions
MRI Reaction with Tattoos
How Tattoo Removal Works