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Wait a second . . . toxic chemicals in my tampons? Ah, menstruation, that monthly ritual often marred by discomfort, inconvenience and most fun of all— mood swings! For most women, once they find the menstrual products that meet their needs, they stick with them for a lifetime without giving them any further thought.

Unfortunately, there is more to tampons than one might expect. Women’s Voices for the Earth (http://www.womensvoices.org/), a national women’s health non-profit, has been delving into the world of tampons and other feminine care products to better understand what they are made of, what toxic chemicals they may contain, and how they might be impacting our health.

The potential impact of toxic chemical exposure from tampons on health is significant—because they are worn internally, with direct contact to some of the most sensitive and absorptive skin on a woman’s body. And despite the widespread use of tampons by numerous women, relatively little research has been conducted to assess the health impacts of chemical exposure from these products.

Vaginal tissue is lined with permeable mucous membranes, which protect the body from bacteria, but which can also easily absorb or be irritated by other chemicals. Vaginal tissues are filled with blood vessels and thus have a near direct route for chemicals to be absorbed to your bloodstream.

Studies have shown that hormone chemicals, like estrogen especially, will be absorbed vaginally at 10–80 times the rate that the same dose would be absorbed orally.1 So there is a real concern about the potential for chemicals associated with tampons affecting women’s health.

What Is a Tampon Made Of?
Some manufacturers will disclose the main components of tampons, and the list usually looks something like this: “Rayon and/or cotton fiber, polyethylene over-wrap, cotton cord, cardboard applicator.” This all sounds pretty simple and straightforward. What is left out of this description, however, are the other potential absorptive materials, additives, fragrances, and potential contaminants that can be found in tampons. Public patent documents held by these companies indicate a number of other chemicals they might be incorporating into tampons, but which are rarely, if ever, disclosed to the consumer.

Examples of other absorbent materials that may be used in tampons include: Creped cellulose wadding, meltblown polymers, chemically-stiffened fibers, polyester fibers, peat moss, foam, tissue wraps and laminates, super absorbent gels and open-celled foams. (US Patent #6,840,927) Examples of additives that may be used in tampons include: Myreth-3-myristate (as lubricant) (US Patent # 5,591,123); Natural and synthetic zeolites (as odor-absorbing particles) (US Patent # 5,161,686); Alcohol ethoxylates, glycerol esters, polysorbate-20 (as surfactants to disperse fragrance) and unnamed anti-bacterial agents (US Patent # 8,585,668) Scented tampons are infused with fragrance, which could be made up of combinations of any of nearly 3,000 different chemicals.

Examples of potentially harmful chemicals that can be found in fragrance include: Cancer-causing chemicals such as: styrene, pyridine, methyleugenol, and butylated hydroxyanisole; Phthalates of concern (DEP and DINP); Synthetic musks (potential hormone disruptors); and numerous allergens.2

Contaminants can also end up in tampons as a result of processing of their components. Dioxins and furans are examples of contaminants that result from chlorine bleaching processes. Exposure to dioxins and furans has been linked to cancer, reproductive harm, and endocrine disruption.3 Studies have confirmed that tampons contain low levels of dioxins and furans. The studies have generally concluded that the health risk from exposure to dioxins and furans from tampon use would be insignificant compared to the risk of exposure to dioxins and furans we get from eating food.4,5 However, the discussion of the impacts of exposure did not address the application or location of the exposure. While the overall contribution of dioxins and furans to a woman’s blood stream may be minor compared to contributions from the food supply, the health impacts of direct exposure of dioxins and furans to vaginal tissue needs greater examination.

Pesticide residues have also been found to contaminate tampons made from traditionally grown cotton.6 These include pesticides such as Procymidon, which EPA has determined to be a “probable human carcinogen,” and piperonyl butoxide, which has been determined to be a “possible human carcinogen.” Unfortunately, there has been no research or attention to assessing the risk of exposure directly to vaginal tissue from these toxic chemicals. These results, while just a single study of one brand, generate valid concern about the potential for exposure to pesticides from tampons. More research is needed to determine how common pesticide residue is found in tampons, and what the health impacts of that exposure may be.

So how toxic are tampons?
What we know about the chemicals used in them generate a true concern for women’s health. But unfortunately there are relatively few studies available looking at adverse health outcomes among women who use them. Given the widespread use of these products by women across their lifetime, increased scrutiny and attention are clearly needed.

Three important steps needed to better ensure the safety of tampons:

  1. Tampon manufacturers need to come clean and disclose to their customers what chemicals can be found in their products.
  2. Independent researchers need to conduct more research to better characterize the chemical exposures from using tampons and other feminine care products and examine the health effects of these exposures.
  3. Policymakers need to provide improved regulatory authority over feminine care products to assure that toxic chemicals are not included in these products in the first place.

Five things you can do now to protect your health from toxic tampons:

  1. Choose unscented tampons.
  2. Choose chlorine-free bleached or unbleached tampons.
  3. Check out the list of No Secrets feminine care companies. No Secrets is a group of companies that list all of their ingredients and have committed to make products without toxic chemicals.
  4. Watch and share the video “Detox the Box” to help spread the word on toxic chemicals in tampons www.bit.ly/detoxthebox.
  5. Join Women’s Voices for the Earth to learn more about

References

  1. Tourgeman DE. et al. (1999) Serum and tissue hormone levels of vaginally and orally administered estradiol. American Journal of Obstetrics and Gynecology. Vol. 180, No. 6, pp:1480–3. June 1999.
  2. International Fragrance Association (IFRA) (2013) IFRA Survey: Transparency List. Available at: http://www.ifraorg.org/en-us/ingredients
  3. DeVito, MJ and Schecter, A. (2002) Exposure assessment to dioxins from the use of tampons and diapers. Environmental Health Perspectives, Vol. 110, No. 1, pp:23–8. Jan. 2002.
  4. Ibid.
  5. Archer JC., Mabry-Smith R., Shojaee S., Threet J., Eckert JJ. and Litman VE. (2005) Dioxin and Furan Levels Found in Tampons. Journal of Women’s Health. Vol. 14, No. 4. 2005.
  6. Naturally Savvy (2013). http://naturallysavvy.com/care/is-there-pesticide-residue-on-your-tampons-our-independent-testing-gets-specific
  7. Join Women’s Voices for the Earth to learn more about how you can protect your health and support policies that protect us from toxic chemical exposure. Visit www.womensvoices.org.
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Alexandra Scranton

Alexandra Scranton is the Director of Science and Research at Women’s Voices for the Earth (WVE). Alex authors WVE’s scientific reports and provides scientific review for the organization’s programs. Prior to working at WVE, she worked in the epidemiology and statistics unit at the American Lung Association headquarters in New York. Alexandra currently sits on the Research Advisory Committee for the California Healthy Nail Salon Collaborative and on the Institutional Biosafety Committee for Rocky Mountain Laboratories (a National Institutes of Health facility). She has a Masters degree in Environmental Studies from the University of Montana and a BA from Amherst College. Alexandra lives and works in Missoula, MT, with her husband and two beautiful daughters.

Website: www.womensvoices.org
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