Permanent makeup, also called a cosmetic tattoo or micropigmentation, is done with the use of a pen containing iron oxide that tattoos the skin and to create the look of makeup. A tattoo can mimic eyeliner or lipstick, or it can darken and create the look of thicker eyebrows. It can also camouflage scars and help with the look of an uneven hairline. The difference between permanent makeup and tattooing can be confusing. Both imply breaking the surface of the skin and implementing colors into it. Both are done with the purpose of creating a long-lasting effect on the skin.