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Though the majority of chemicals in cosmetic products present hardly any or absolutely no danger, some are associated with serious medical problems, including developmental delays and cancer. Chemicals in cosmetics can enter a person's body through the skin, inhalation, ingestion and internal use, and pose similar dangers as food chemicals, per this site.

Contaminants and chemicals linked to cancer are found in food, water, and many other ordinary products. But, no kind of consumer products is subject to less government inspection than cosmetics and other personal products, including Hydrating Lip Balm SPF 30 (Nude). Though many of the contaminants and chemicals in cosmetics and personal care products most likely present little risk, being exposed to some has been linked to major health concerns, including cancer.