MAKEUP PRODUCTS (NON-PERMANENT)

Though many chemicals in beauty products pose hardly any or absolutely no threat, several dozen have been associated to significant medical problems, including neurological harm and cancer. Cosmetic chemicals can enter a person's body through the skin and inhalation, and cause similar problems as food chemicals, per this site.

Chemicals associated with cancer can be found in food and various other everyday goods. However, no classification of consumer goods is subject to less government management than cosmetics, including Brow Definer. While many of the chemicals in cosmetics almost certainly present very little risk, subjection to some has been associated with significant health problems, including cancer.