MAKEUP PRODUCTS (NON-PERMANENT)

While many chemicals in cosmetics present very little or zero risk, some are associated to significant medical problems, including neurological harm and cancer. Chemicals in cosmetics can enter a person's body through inhalation, the skin, and ingestion, and lead to the same dangers as food chemicals, per this site.

Chemicals and contaminants associated with cancer can be found in food, water, and many other commonly used products. However, no type of consumer products is susceptible to less government inspection than cosmetics and other personal care products, including Magic Marker Eyeliner. Although many of the chemicals and contaminants in cosmetics probably pose very little risk, subjection to some is associated with serious health conditions, including cancer.