MAKEUP PRODUCTS (NON-PERMANENT)

While most chemicals in cosmetic products present very little or zero risk, several dozen are associated to serious medical conditions, such as cancer, and neurological harm. Cosmetic chemicals can enter a person's body through the skin and inhalation, and pose similar risks as food chemicals, per this site.

Contaminants and chemicals associated with cancer can be found in water, food, and a lot of other common products. Still, no area of consumer products is subject to less government direction than cosmetics, including LESSON 1 - SMOKY EYES. Though most of the contaminants and chemicals in cosmetics likely pose little risk, being exposed to a few is associated with worrying health concerns, including cancer.