MAKEUP PRODUCTS (NON-PERMANENT)

Although many chemicals in cosmetic products present slight or zero risk, several dozen are associated to serious medical issues, including developmental delays and cancer. Cosmetic chemicals gain entry to the body through the skin and inhalation, and lead to the same problems as food chemicals, per this site.

Contaminants and chemicals linked to cancer are found in food and many other common items. However, no classification of consumer items is susceptible to less government oversight than cosmetics and other personal products, including Liquid shadow & liner. Though many of the chemicals and contaminants in cosmetics and personal care products almost certainly pose minimal risk, being exposed to some has been linked to substantial health concerns, such as cancer.