MAKEUP PRODUCTS (NON-PERMANENT)

Though most chemicals in beauty products and cosmetics pose hardly any or absolutely no danger, some have been associated to serious health conditions, such as cancer, reproductive and neurological harm, and developmental delays. Cosmetic chemicals can enter a person's body through the skin and inhalation, and cause similar problems as food chemicals, per this site.

Chemicals associated with cancer can be found in food, water, and many other ordinary goods. However, no kind of consumer goods is susceptible to less government oversight than cosmetics and other personal care products, including Eyeliner. While many of the chemicals and contaminants in cosmetics probably present very little risk, being exposed to a few is associated with worrying health conditions, including cancer.