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Although many chemicals in beauty products present hardly any or absolutely no threat, dozens have been linked to significant medical conditions, such as developmental delays and cancer. Chemicals in cosmetics invade a person's body through internal use, the skin, and inhalation, and pose similar problems as food chemicals, per this site.

Contaminants and chemicals associated with cancer are found in food and several other common products. But, no category of consumer products is susceptible to less government oversight than cosmetics, including Sally Hansen Quick Care Seal & Shine Topcoat. Though most of the chemicals and contaminants in cosmetics and personal care products probably pose little risk, exposure to some is associated with serious health problems, including cancer.