HAIR CARE PRODUCTS (NON-COLORING)

While most chemicals in beauty products and cosmetics present little or zero threat, some are linked to serious medical issues, such as developmental delays and cancer. Cosmetic chemicals can enter a person's body through ingestion, inhalation, and internal use, and lead to similar dangers as food chemicals, per this site.

Chemicals and contaminants linked to cancer are found in water, food, and lots of other ordinary items. But, no classification of consumer items is subject to less government inspection than cosmetics, including Shampoo. Though many of the chemicals and contaminants in cosmetics and personal care products probably pose minimal risk, being exposed to a few is linked to worrying health disorders, such as cancer.