HAIR CARE PRODUCTS (NON-COLORING)

While most chemicals in beauty products present slight or absolutely no risk, several have been associated with significant health issues, such as cancer, and neurological harm. Chemicals in cosmetics get into a person's body through the skin and inhalation, and cause the same risks as food chemicals, per this site.

Chemicals associated with cancer can be found in food and various other commonly used products. But, no group of consumer products is accountable to less government management than cosmetics and other personal products, including protein shampoo. Though many of the chemicals in cosmetics probably pose little risk, being exposed to a few is associated with significant health concerns, such as cancer.