It’s paint! It’s a pen! Actually, it’s an oil-based marker, so it’s kind of both—and neither. Broadly, many implements can be considered oil-based markers: Most inks branded as “permanent” contain ...

Water based paints contain organic solvents and many additives, such as biocides, surfactants, pigments, binders, amines, and monomers. The chemical complexity may introduce new potential health ...