MAKEUP PRODUCTS (NON-PERMANENT)

Though most chemicals in beauty products and cosmetics pose little or no danger, some have been associated with substantial medical problems, including developmental delays and cancer. Chemicals in cosmetics enter a person's body through inhalation, the skin, and ingestion, and pose the same dangers as food chemicals, per this site.

Chemicals linked to cancer can be found in food, water, and various other ordinary items. However, no category of consumer items is subject to less government inspection than cosmetics, including NARS Night Series Eyeliner. Although many of the contaminants and chemicals in cosmetics and personal care products very likely present minimal risk, exposure to a few has been linked to substantial health disorders, such as cancer.