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While many chemicals in beauty products pose slight or no threat, several dozen have been associated to severe medical issues, including cancer, and neurological harm. Chemicals in cosmetics invade a person's body through the skin and inhalation, and pose similar risks as food chemicals, per this site.

Chemicals linked to cancer are found in water, food, and several other common goods. But, no group of consumer goods is accountable to less government inspection than cosmetics, including Gemstone - Tourmaline. While many of the chemicals and contaminants in cosmetics most likely pose little risk, being exposed to a few has been linked to major health issues, such as cancer.