MAKEUP PRODUCTS (NON-PERMANENT)

While most chemicals in beauty products pose little or no threat, some are linked with substantial medical conditions, including cancer, and neurological harm. Chemicals in cosmetics can enter a person's body through internal use, the skin, and inhalation, and pose similar problems as food chemicals, per this site.

Chemicals and contaminants associated with cancer can be found in water, food, and various other common goods. Still, no area of consumer goods is accountable to less government management than cosmetics and other personal care products, including self sharpening precision eyeliner. Though most of the chemicals in cosmetics and personal care products probably present very little risk, exposure to some is associated with major health disorders, including cancer.