MAKEUP PRODUCTS (NON-PERMANENT)

Though the majority of chemicals in beauty products and cosmetics pose slight or no risk, several dozen have been associated to serious health conditions, such as developmental delays and cancer. Cosmetic chemicals can enter a person's body through inhalation, the skin, and ingestion, and cause the same problems as food chemicals, per this site.

Chemicals linked to cancer can be found in water, food, and various other everyday goods. Yet, no category of consumer goods is susceptible to less government inspection than cosmetics and other personal products, including Neutrogena Intense Gel Eyeliner. Though many of the chemicals in cosmetics likely present little risk, being exposed to a few has been linked to substantial health conditions, including cancer.