HAIR CARE PRODUCTS (NON-COLORING)

Though the majority of chemicals in cosmetics pose very little or no threat, several dozen have been linked with serious health problems, including neurological harm and cancer. Cosmetic chemicals enter a person's body through inhalation, the skin, and ingestion, and cause similar problems as food chemicals, per this site.

Chemicals associated with cancer are found in water, food, and various other ordinary goods. However, no sector of consumer goods is subject to less government direction than cosmetics and other personal products, including Trolls shampoo. While many of the chemicals and contaminants in cosmetics and personal care products almost certainly pose minimal risk, your exposure to some has been associated with worrying health concerns, including cancer.