Studies have found small amounts of toxic heavy metals and other potentially harmful substances in some menstrual pads and tampons.

(BOULDER, CO) About half of the global population menstruates at some point in their lives. Disposable products, such as tampons and pads, are some of the most popular products used around the globe to manage menstrual flow.

Unfortunately, studies have shown that many personal care products, including shampoo, lotion, nail polish and menstrual products, contain hazardous chemicals. Items used in or near the vagina are of particular concern because they are in contact with vaginal mucous membranes – the moist tissue lining the inside of the vagina that secretes mucus. These tissues can absorb some chemicals very efficiently.

Originally published on theconversation.com, part of the BLOX Digital Content Exchange.