MAKEUP PRODUCTS (NON-PERMANENT)

Though the majority of chemicals in cosmetic products pose slight or zero threat, dozens are associated with serious medical issues, such as cancer, reproductive and neurological harm, and developmental delays. Cosmetic chemicals can enter the body through internal use, the skin, and inhalation, and cause similar dangers as food chemicals, per this site.

Contaminants and chemicals linked to cancer are found in food, water, and many other commonly used items. However, no category of consumer items is accountable to less government inspection than cosmetics, including eyeliner. While most of the contaminants and chemicals in cosmetics and personal care products very likely pose minimal risk, being exposed to a few has been linked to substantial health problems, such as cancer.