MAKEUP PRODUCTS (NON-PERMANENT)

Although the majority of chemicals in cosmetic products pose very little or zero threat, some have been linked to serious medical issues, including developmental delays and cancer. Chemicals in cosmetics enter a person's body through inhalation, ingestion, and the skin, and cause the same risks as food chemicals, per this site.

Chemicals and contaminants associated with cancer can be found in food and a lot of other everyday products. But, no category of consumer products is accountable to less government management than cosmetics, including Waterproof Eyeliner. Though most of the contaminants and chemicals in cosmetics and personal care products very likely present little risk, being exposed to a few has been associated with substantial health concerns, such as cancer.