MAKEUP PRODUCTS (NON-PERMANENT)

Although the majority of chemicals in beauty products and cosmetics pose hardly any or zero danger, dozens have been associated to severe medical problems, including neurological harm and cancer. Cosmetic chemicals get into a person's body through internal use, the skin, and inhalation, and pose similar problems as food chemicals, per this site.

Contaminants and chemicals associated with cancer can be found in food and many other commonly used products. Still, no sector of consumer products is subject to less government direction than cosmetics, including Gel Eyeliners. Though many of the chemicals and contaminants in cosmetics and personal care products likely pose very little risk, exposure to some is associated with substantial health disorders, such as cancer.