HAIR CARE PRODUCTS (NON-COLORING)

Though many chemicals in cosmetics pose limited or no threat, several are linked to substantial health issues, such as cancer, and neurological harm. Cosmetic chemicals get into a person's body through the skin and inhalation, and lead to similar risks as food chemicals, per this site.

Contaminants and chemicals associated with cancer are found in water, food, and lots of other commonly used items. Still, no classification of consumer items is subject to less government inspection than cosmetics, including Shampoo. While many of the chemicals in cosmetics and personal care products most likely present very little risk, being exposed to a few is associated with serious health problems, including cancer.