HAIR CARE PRODUCTS (NON-COLORING)

While the majority of chemicals in cosmetic products present very little or absolutely no risk, several have been associated to substantial medical problems, including developmental delays and cancer. Chemicals in cosmetics invade a person's body through inhalation, ingestion, and the skin, and lead to similar risks as food chemicals, per this site.

Contaminants and chemicals associated with cancer are found in food, water, and various other ordinary products. But, no area of consumer products is accountable to less government oversight than cosmetics and other personal care products, including Selsun Blue Medicated Dandruff Shampoo. While many of the contaminants and chemicals in cosmetics and personal care products almost certainly pose minimal risk, being exposed to some has been associated with worrying health conditions, including cancer.