MAKEUP PRODUCTS (NON-PERMANENT)

Though many chemicals in cosmetics pose slight or no risk, several dozen have been linked with significant medical problems, such as developmental delays and cancer. Cosmetic chemicals gain entry to a person's body through the skin and inhalation, and cause the same problems as food chemicals, per this site.

Chemicals and contaminants associated with cancer are found in food, water, and several other everyday products. However, no area of consumer products is accountable to less government inspection than cosmetics, including Concealer (3.5 shade). Although many of the chemicals and contaminants in cosmetics almost certainly present very little risk, exposure to a few is associated with significant health disorders, such as cancer.