MAKEUP PRODUCTS (NON-PERMANENT)

Though many chemicals in cosmetic products pose hardly any or no risk, several are associated to substantial health issues, such as cancer, reproductive and neurological harm, and developmental delays. Chemicals in cosmetics can enter a person's body through the skin and inhalation, and lead to the same risks as food chemicals, per this site.

Contaminants and chemicals associated with cancer can be found in food and various other ordinary items. However, no classification of consumer items is subject to less government direction than cosmetics, including ck one double-ended eyeliner. While many of the chemicals and contaminants in cosmetics probably pose little risk, subjection to some has been associated with serious health disorders, including cancer.