MAKEUP PRODUCTS (NON-PERMANENT)

While most chemicals in beauty products pose little or no risk, several are linked with severe medical conditions, including cancer, reproductive and neurological harm, and developmental delays. Chemicals in cosmetics can enter a person's body through internal use, the skin, and inhalation, and lead to the same dangers as food chemicals, per this site.

Chemicals associated with cancer are found in food, water, and various other commonly used items. But, no type of consumer items is subject to less government direction than cosmetics, including Duo Eyeliner. While many of the chemicals in cosmetics very likely present minimal risk, your exposure to some has been associated with substantial health concerns, including cancer.