TATTOOS AND PERMANENT MAKEUP

While many chemicals in cosmetics pose hardly any or no threat, several dozen have been associated to significant medical issues, such as cancer, reproductive and neurological harm, and developmental delays. Cosmetic chemicals invade a person's body through inhalation, ingestion, and the skin, and lead to similar problems as food chemicals, per this site.

Chemicals linked to cancer can be found in water, food, and a lot of other everyday products. However, no classification of consumer products is accountable to less government management than cosmetics, including St. Patrick's greeting card with tattoo attachment. Though most of the chemicals and contaminants in cosmetics and personal care products most likely pose minimal risk, exposure to some is linked to substantial health issues, including cancer.