HAIR CARE PRODUCTS (NON-COLORING)

Although most chemicals in cosmetics present hardly any or no risk, several dozen are associated with considerable medical problems, such as cancer, reproductive and neurological harm, and developmental delays. Chemicals in cosmetics get into the body through internal use, the skin, and inhalation, and lead to the same risks as food chemicals, per this site.

Contaminants and chemicals associated with cancer are found in water, food, and a lot of other common items. However, no group of consumer items is accountable to less government oversight than cosmetics and other personal care products, including (re)Fresh Dry Shampoo. Though most of the chemicals in cosmetics in all likelihood present very little risk, your exposure to a few has been associated with substantial health concerns, including cancer.