MAKEUP PRODUCTS (NON-PERMANENT)

While the majority of chemicals in cosmetic products pose limited or absolutely no threat, several dozen are associated to substantial health issues, including neurological harm and cancer. Chemicals in cosmetics can enter the body through inhalation, the skin, and ingestion, and lead to similar problems as food chemicals, per this site.

Contaminants and chemicals associated with cancer can be found in water, food, and various other ordinary products. Yet, no classification of consumer products is subject to less government management than cosmetics, including Little Black Book of Looks. Though many of the chemicals in cosmetics almost certainly pose minimal risk, being exposed to some has been associated with substantial health conditions, including cancer.