HAIR CARE PRODUCTS (NON-COLORING)

While many chemicals in beauty products and cosmetics present slight or zero threat, dozens have been linked with considerable medical issues, including neurological harm and cancer. Chemicals in cosmetics gain entry to a person's body through inhalation, the skin, and ingestion, and pose the same problems as food chemicals, per this site.

Contaminants and chemicals linked to cancer can be found in food and various other commonly used goods. However, no group of consumer goods is subject to less government management than cosmetics, including Shiseido Extra Gentle Shampoo (For Normal to Dry Hair). While most of the chemicals and contaminants in cosmetics likely present minimal risk, exposure to some has been linked to significant health conditions, including cancer.