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Disposable & Cloth Diapers Tested For Indications of PFAS “Forever Chemicals”

Mamavation » Blog » Motherhood | Mamavation » Disposable & Cloth Diapers Tested For Indications of PFAS “Forever Chemicals”
Little baby in diaper on bed at home, back view

November 1, 2023 //  by Leah Segedie

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Do disposable diapers and cloth diapers contain indications of PFAS “forever chemicals?” Mamavation community members asked me to study this, knowing that babies can use over 4,000 diapers in the first three years of their life. How you diaper your baby matters because if PFAS are present in diapers, they may be absorbed by your baby. Mamavation wants to help you find the safest diapering alternatives for your bundle of joy. You’ve trusted Mamavation to bring you topics like best organic infant formulas, safest baby foods sans heavy metals, & safest breathable crib mattresses. Now join us for a consumer study on diapers from over 40 brands lab-tested for indications of PFAS “forever chemicals.” [updated additional products on 4/29/2024]

Disclosure: This consumer study is released in partnership with Environmental Health News & Gentle Nursery. Scientific reviews were performed by (1) Terrence Collins, Teresa Heinz Professor of Green Chemistry & Director of the Institute for Green Sciences at Carnegie Mellon University, (2) Linda S. Birnbaum, Scientist Emeritus and Former Director of the National Institute of Environmental Health Sciences and National Toxicology Program & Scholar in Residence at Duke University, Adjunct Professor at the University of North Carolina, & Yale University, (3) Pete Myers, Chief Scientist at Environmental Health Sciences, Adjunct Professor of Chemistry at Carnegie Mellon University, and Co-Author of Our Stolen Future, & (4) Scott Belcher, Associate Professor with the Center for Environmental & Health Effects of PFAS at North Carolina State University. This post was medically reviewed by Sondra Strand, RN, BSN, PHN. Donations were provided by Environmental Health News and Mamavation community members. Note that Mamavation has only “spot-checked” the industry and thus we cannot make predictions about brands and products that we have not tested. Products and manufacturing aides can change without notice so buyer beware. This post contains affiliate links, with some to Amazon, which means Mamavation will receive a portion of those sales and we will use that to pay ourselves back for the testing. You can also give a tax-deductible donation to our consumer studies here through Environmental Health Sciences. Click “yes” when asked if the gift is in honor of someone and type “Mamavation.” Thank you!  [Update: additional products added on 4/29/24] 

Reusable diapers isolated on white background, close up

Table of Contents

  • Mamavation’s Finds Indications of PFAS “Forever Chemicals” in Disposable Diapers & Cloth Diapers
  • PFAS “Forever Chemicals” Have Problematic Health Effects
  • OEKO-TEX Certification Isn’t Exactly PFAS-Free
  • The Anatomy of a Diaper & Other Issues to Look Out For
    • Components of Most Diapers
    • Chlorine & Derivatives
    • Volatile Organic Compounds (VOCs)
    • Undisclosed Fragrances & Phthalates
    • Toxic Chemicals like Tributyltin, Dibutyltin, & Monobutyltin
    • Adhesives, Lotions, Dyes, & Wetness Indicators
  • Additional Materials To Avoid in Reusable & Cloth Diapers
    • Toxicity of Plastics Used In Reusable Diapers or Cloth Diapers
  • How to Save on Disposable Diapers
  • Other Categories of Products Mamavation Has Tested for Indications of PFAS “Forever Chemicals”
  • Mamavation’s Investigation of Disposable Diapers & Cloth Diapers
    • Not Our Favorite Disposable Diapers & Cloth Diapers
      • Disposable Diapers
      • Reusable Cloth Diapers
    • Better Disposable Diapers & Cloth Diapers
      • Disposable Diapers
      • Reusable Cloth Diapers
    • Best Disposable Diapers & Cloth Diapers
      • Disposable Diapers
      • Reusable Cloth Diapers

Mamavation’s Finds Indications of PFAS “Forever Chemicals” in Disposable Diapers & Cloth Diapers

Mamavation’s EPA-certified laboratory found indications of PFAS “forever chemicals” inside popular disposable diapers and cloth diapers after analyzing 40 diaper brands on the market today. PFAS are per- and polyfluoroalkyl substances that have been used for many decades as stain-resistant, oil-resistant, grease-resistant, & water-resistant chemicals in commerce. From our vantage point, it looks as if the diapering industry has also used PFAS for water repellency similar to raincoats & hiking boots.

PFAS is found in many other areas of our homes with some examples being cookware, makeup, drinking water, contact lenses & dental floss. These chemicals are linked to serious health effects, which we will discuss later. Because PFAS are so toxic, Mamavation has commissioned our own scientific studies on indications of PFAS in products to make recommendations for disposable diapers and cloth diapers using PFAS-free materials. Read Mamavation’s articles (see below) on these products to find which brands are organic-fluorine-free.

For this consumer study, Mamavation sent 65 diapers & similar accessories marketed for children from 40 brands to an EPA-certified laboratory looking for indications of toxic PFAS “forever chemicals.”  Here’s what we found:

  • 23% of total diaper products tested had indications of PFAS “forever chemicals.” 15 detections from 65 diapers and cloth diaper accessories marketed to children had organic fluorine above 10 parts per million (ppm) according to our lab,
  • Broken down by category, 17% of disposable diapers tested had indications of PFAS. Specifically, 6 out of 35 disposable diapers had detectable levels of organic fluorine above 10 ppm.
  • 30% of reusable cloth diapers & accessories had indications of PFAS “forever chemicals.” Specifically, 9 out of 30 reusable cloth diapers and accessories had detectable levels of organic fluorine above 10 ppm.
  • According to our lab, two OEKO-TEX-certified brands had indications of PFAS “forever chemicals.” These brands were marketed as “non-toxic” “safe from harmful substances” and “safe for baby and the Planet.”
  • Ranges of organic fluorine, a marker of PFAS, were from 10 ppm to 323 ppm. 
  • Both the inside and outside of the diapers were tested at the lab.
  • [update: additional products added on 4/29/24 that will change the percentages above]

Linda Birnbaum, Scientist Emeritus and Former Director of the National Institute of Environmental Health Sciences and National Toxicology Program & Scholar in Residence at Duke University, and Adjunct Professor at both University of North Carolina, & Yale University had this to say: “This is something that needs to be addressed immediately by the diaper industry! PFAS is not the type of chemical class that we can ignore around small infants. They accumulate inside the body and are close to impossible to get rid of. We already know that exposure to these chemicals can cause problems in pregnant women, but the effects on babies at this young age are mostly unknown. But just because we don’t know all the health impacts doesn’t mean they are safe. This idea is categorically false, especially around infants. I’m recommending IMMEDIATE action from the diaper industry to identify and avoid PFAS by doing total organic fluorine testing (instead of only testing specific compounds one by one) to better protect these infants.”

Concept of baby clothes with reusable diapers on purple background

PFAS “Forever Chemicals” Have Problematic Health Effects

PFAS “forever chemicals” are problematic for human health and the environment. They are considered ubiquitous, persistent, and toxic. In fact, many of these PFAS chemicals can last for years or decades in our bodies.

Pregnant women and babies are the most vulnerable to the effects of toxic chemicals like PFAS in the environment. The development of a child can be disrupted by toxic chemicals that mimic natural hormones in such a way that are permanent and profound. Therefore, it’s imperative to reduce the amount of PFAS your children are exposed to from food, water, and consumer products like diapers. Mamavation is dedicated to helping you do that when you are shopping for diapers.

Here are some of the health effects of different PFAS “forever chemicals:”

  • Reduction in immunity
  • Reduced vaccination response
  • Increased risk of allergies & asthma in young children
  • Affected growth, learning, and behavior of infants and older children
  • Increase cholesterol levels
  • Metabolic diseases like obesity & diabetes
  • Cardiovascular disease
  • Lowered a woman’s chance of getting pregnant
  • Lowered male fertility
  • Increased risk of kidney & testicular cancers
  • Causes endocrine disruption
  • Disrupted normal thyroid function

It’s also very clear based on biomonitoring evidence from the Center for Disease Control (CDC) that PFAS are in all Americans. Therefore, these impacts can harm most Americans.

Newborn baby in green reusable diaper on a white sheet. Modern eco friendly cloth nappy for infant child hygiene. Sustainable lifestyle, zero waste concept.

OEKO-TEX Certification Isn’t Exactly PFAS-Free

While some diaper companies use third-party certifications like FSC-certified to prove they are using materials from responsibly managed forests, there is one other certification we felt the need to explain. We found some diapers use OEKO-TEX certification to showcase how they do not off-gas problematic chemicals in trace amounts or cause exposure to certain toxic chemicals.  However, we found some major issues with OEKO-TEX in regard to PFAS that you need to know about.

OEKO-TEX has created new rules for PFAS in their certification, which include testing for PFAS chemicals, however, it’s not exactly a PFAS-free certification. Their new rules state that fabrics and products (in some of their certifications, but not all) need to be tested for organic fluorine. What they don’t tell you, however, is the testing they mandate (Extractable Organic Fluorine testing) doesn’t extract PFAS polymers, like polytetrafluoroethylene (PTFE) also known as “Teflon.” Why does this matter? Well, if you aren’t testing for PTFE, you won’t find PTFE in those tests. (We found two perfect examples of this possibility in our testing when we found an indication of PFAS in diapers with OEKO-TEX certification.)

  • KUDOS Disposable Diapers
  • Charlie Banana Reusable Diapers

So PTFE (the same chemical coating on certain non-stick pans) could potentially be in OEKO-TEX-certified products and no one would know because the testing mandated by the certification would not be able to tell. From our vantage point as we have helped several brands behind the scenes become fluorine-free, the vast majority of the problems we have encountered over the past three years are mostly related to PTFE. PTFE is also known to be very common in manufacturing in general, meaning it’s safe to assume it’s being used somewhere along the supply chain via lubrications, coatings on machinery, fluorinated plastics, etc. Therefore although OEKO-TEX is claiming to be PFAS-free, they aren’t telling you ALL the details to help you make an educated decision on PFAS. They use a testing approach that avoids PTFE. This means they cannot claim their products are PFAS-free.

OEKO-TEX is already in the crosshairs of California based on laws passed that protect children under the age of 12 from PFAS. AB 652 became law on July 1st, 2023. This law states no product for children under 12 can have intentionally added PFAS that has a functional or technical effect or ≥ 100 ppm (as total organic fluorine). Did you notice it says “total organic fluorine” not “extractable organic fluorine?” That’s because California recognizes that EOF testing does not extract PFAS polymers and would miss potential issues. So is it possible to purchase an OEKO-TEX product with PFAS levels that do not meet California’s new standards? It’s very possible because they are using the wrong kind of testing.

Another California bill signed into law that goes into effect in 2025 states that no apparel company can have PFAS above 100 ppm, but then by 2027, it goes lower to 50 ppm. This is a recognition that even “unintentional PFAS” will no longer be legal in California above certain thresholds using “total organic fluorine” testing just like we have done. We believe OEKO-TEX should reconsider what type of testing they are requiring from brands to stay within compliance with California and its laws. They should also police the marketing of their certification to ensure this issue is being clearly communicated to the public.

Terrence Collins, Teresa Heinz Professor of Green Chemistry & Director of the Institute for Green Sciences at Carnegie Mellon University had this to say:

“Mamavation is providing a very important service with this study. I looked at the OEKO-TEX® Standard 100 that some manufacturers are proud to proclaim their diapers meet. The Standard has a Class 1 section for chemicals in products appropriate for babies and this, appropriately, has the strictest limits. While the standard has been getting progressively stricter on PFAS limits over time, I would urge an even tighter strictness. Mamavation’s study deals with total organic fluorine in diapers, both extractable and non-extractable, and makes the point that it is a weakness of the Standard that it does not consider non-extractable organic fluorine. But another weakness is that the latest edition of the Standard still allows 10 ppm of Extractable Organic Fluorine (EOF)—too much, way too much! The EPA has set new concentration lifetime limits for the most toxic PFAS compounds in water that are so low that they are currently impossible to detect at any given time. We absolutely don’t want babies exposed to products containing 10 ppm of Extractable Organic Fluorine which is massive compared to the water standards! More broadly, whether extractable or non-extractable, PFAS chemicals once manufactured and distributed through commerce end up in the ecosphere somewhere and that can be in babies. Nature is helpless to get rid of them on any reasonable time scale. We really need to put the brakes on making PFAS and replace them, where necessary, as quickly as possible with alternatives that have been tested for safety to the highest standards of contemporary science.”

Little baby sitting on nude background

The Anatomy of a Diaper & Other Issues to Look Out For

Whether you have a disposable diaper or a cloth diaper, these products are complicated and require many parts to absorb liquids and keep leaks from happening. The most common type of diaper we tested was marketed as hypoallergenic to a baby’s skin which means it uses gentler materials and excludes problematic ingredients like synthetic fragrance, so the baby does not have skin irritation and rashes. This doesn’t mean the diaper is “non-toxic” but rather it’s less problematic for diaper rash. We found through our testing that a claim of hypoallergenic does not necessarily mean no PFAS.

Components of Most Diapers

  • Top Sheet: This touches the baby on the inside and would be considered the inner layer. It’s important to watch out for additional chemicals touching the baby’s delicate skin like lotion and undisclosed fragrances. We found lots of indications of PFAS in this area.
  • Back Sheet: This is the outside of the diaper. Many brands are using petroleum-based inks instead of water-based inks. If you have a reusable diaper, this back sheet can also be made from petroleum byproducts. (We will go over later which plastics are safest for infants.) This is also where we found lots of indications of PFAS in many reusable diapers.
  • Absorbent Core Material: These are the materials used to catch the contents. Most brands of diapers use super absorbent polymer (SAP) or “fluff pulp” to catch urine & feces. Sometimes these materials can also have a wetness indicator built into the diaper that changes color from exposure to urine. We were not able to test the pulp on the insides of the diapers. While cloth diapers use absorbent fabrics such as microfibers, hemp, and cotton as their absorbent core. Some of these cloth diaper inserts come in direct contact with the baby’s skin, some do not. 
  • Leg Cuffs: This squeezes the fabric around their legs so it doesn’t leak. This can include an elastic waistband made from spandex, latex, or other materials.
  • Closing System: This is the part that closes the diaper so you can let the baby move around without worry. Closing systems vary on the diaper. It can be a clasp, polymer snaps, velcro, or even an old-fashioned safety pin.

Here are some of the categories of chemicals, in addition to PFAS, that we looked for when ranking premium diapers & non-toxic diapers.

Baby crawling indoors smiling

Chlorine & Derivatives

Most disposable diapers in the past were made from a type of wood pulp that was dyed with chlorine bleach to make them whiter. Back then chlorine produced carcinogenic dioxins that babies were exposed to. Today, this has mostly changed but there are still some differences to watch out for in the bleaching process. Most diapers are made from specialized polymer materials including cellulose, polypropylene, polyester, and polyethylene. They are still mostly dyed, but different methods are used to accomplish this in the United States:

  • ECF (elemental chlorine-free) pulp: This type of bleaching is not completely free of chlorine because it typically uses a different type of chlorine compound — chlorine dioxide. This chemical is still problematic on its own, but an improvement on a bleaching process that uses elemental chlorine. Brands that use ECF bleaching claim that elemental chlorine is not detectable in the final product via testing, but this bleaching process can still create disinfection byproducts. Therefore, because of the precautionary principle, we do NOT recommend this type of bleaching if a better alternative exists.
  • TCF (total chlorine-free) pulp: This bleaching process is what we recommend you look for when selecting a diaper. No chlorine or chlorine compounds are used to dye products. Instead, they use oxygen, peroxide, and ozone-bleaching systems, which do not create disinfection byproducts. Watch out for diapers that claim to be “chlorine-free” without telling you what type of bleaching process they are using. Chances are, they are using the ECF method and want you to believe it’s TCF instead. True TCF bleaching represents only about 5% of the pulp manufactured for diapers, so be on the lookout.

Babies crawling on the floor with diapers on

Volatile Organic Compounds (VOCs)

A recent study published in the Journal of Environmental Science and Technology found toxic Volatile Organic Compounds (VOCs) in many baby diapers. The baby diapers that were studied were found to have several known or suspected carcinogens including benzene and 1,4-dioxane. Unfortunately, they did not alert the consumer as to which brands had the highest levels of VOCs.

One of the problems that arises with diapers is the lack of disclosure. It was impossible for us to get the materials and chemicals used to produce all these diapers even when we emailed. In fact, some brands simply refused to respond to consumer questions about this. Is this illegal? No.

So how do you avoid VOCs in disposable diapers? It’s impossible to do without testing because even plant-based materials can be problematic. The easiest way to do this is to look for third-party certifications like EWG Verified or OEKO TEX Standard 100 (but not for PFAS).

Babies sitting on ground in their diapers and one standing with a red ball

Undisclosed Fragrances & Phthalates

Fragrances are used in diapers to mask unpleasant odors. That sounds great until you understand what fragrances are made of and how potentially problematic they are to infants and toddlers.

“Fragrance” is either made from petroleum (synthetic fragrances) or botanical (natural fragrance) raw materials or both. It can also contain ingredients like solvents, stabilizers, UV absorbers, preservatives, phthalates, and dyes. These types of chemicals vary in toxicity. But there is lots of mystery surrounding “fragrance” inside products like diapers.

Phthalates are another class of ingredient that is also hormone-disrupting and found in lots of personal care products. Phthalates are commonly used as a solvent (a liquid that can dissolve other substances) and fixative (a substance that can help the fragrance last longer on the skin) inside fragrances.  The most common phthalate inside fragrance is diethyl phthalate (DEP) and it’s considered toxic by the Toxic Substances Portal of the Agency for Toxic Substances and Disease Registry (ATSDR).

Phthalates are linked to health impacts like obesity and hyperactivity in children, and the kicker is infertility in men by degrading sperm quality. (In other words, wearing fragrances with phthalates when pregnant with a baby boy is a problem.) In fact, phthalates are so problematic to male fertility, they are being restricted in places like China. You can also find phthalates inside adhesives and dyes used in diapers.

Babies with diapers on crawling away

Toxic Chemicals like Tributyltin, Dibutyltin, & Monobutyltin

Many disposable diapers may contain toxic chemicals called tributyltin (TBT) or other organotin compounds (organic tin compounds) like dibutyltin (DBT) or monobutyltin (MBT). Organotin substances have toxic effects which include neurotoxicity, endocrine disruption, reproductive and developmental toxicity, and immunotoxicity.

These compounds are very harmful to aquatic life and are used as antifungal agents in wood pulp mills or as stabilizers in the manufacturing process of plastic polymers. Because disposable diapers represent 4% of solid waste and are the third largest single consumer item found in landfills, it’s important to understand how these chemicals also interact with the environment. Several organotins, including TBT and DBT are obesogens, that is, contribute to weight gain. 

  • Tributyltin (TBT): This is a toxic chemical used in many industrial applications like slime control in paper mills, disinfection of circulating industrial cooling waters, antifouling agents, and the preservation of wood. This chemical is found commonly in waterways because it’s used by ships as an anti-fouling agent in paint. It’s also quite common in diapers as a byproduct found in paper mills.
  • Dibutyltin (DBT): This is a toxic chemical that is used to stabilize plastics like silicones, polyvinyl chloride plastics, polyurethanes, and polyester. It’s also used as a deworming agent in some poultry. It’s common to find DBT inside water pipelines and storage containers, and thus DBT is found in drinking water and beverages as well. Contaminated food & beverages, including seafood, are the most common exposure to humans.
  • Monobutyltin (MBT): This toxic chemical is used as a stabilizer and catalyst in polyurethane foam and silicones.

Two adorable babies in their diapers

Adhesives, Lotions, Dyes, & Wetness Indicators

Adhesives, lotions, dyes & wetness indicators were the biggest problems we saw in terms of transparency. Most diaper companies are not 100% transparent about their use of adhesives, lotions, dyes, or wetness indicators at all. In fact, we emailed several of them and got very few responses about this topic and even less usable information.

  • Adhesives: From our research on the industry, we discovered that most disposable diapers rely on a hot-melt adhesive process that uses a thermoplastic polymer to bond all the components of the diaper together. But as for disclosure, very few companies are transparent about all these details, so there may be some that are using toxic adhesives and we would have no idea. Many of these adhesives include alkylphenol ethoxylates, or APEOs, and alkylphenol derivatives, which are highly toxic to aquatic life and linked to reproductive and developmental issues in animal studies.
  • Lotions: Many diapers are coated with lotions on the outer exterior top sheet of the disposable diaper. This is the part that touches the baby’s skin. Unfortunately, “lotion” could contain anything from petroleum ingredients to vegetable oils to aloe vera and botanical extracts. We simply do not know what is inside these ingredients, which is part of the problem.
  • Dyes: Dyes can become very problematic to babies when they cause allergic reactions or expose them to heavy metals like lead. One study published in Pediatrics suggests that green, pink, & blue dyes from disposable diapers were responsible for contact dermatitis.
  • Wetness Indicators: Some diapers include wetness indicators inside the diaper to alert parents to a soggy diaper. These strips typically include dyes or a pH indicator within a carrier matrix (which can include petroleum-derived and ethoxylated compounds) so that when urine comes in contact with the strip, the color intensifies. Diaper companies were not transparent about the ingredients used, but we know these strips can include harmful chemicals like quaternary ammonium compounds (Quats) and halogenated organic compounds, in addition to whatever is found in the carrier matrixes, which can also contain polycyclic aromatic hydrocarbons or PAHs that are considered carcinogens.

If you are looking for a disposable diaper that is 100% transparent about these issues, we would recommend the following brand. We took the liberty of reaching out to them to get a discount for you:

  • Healthy Baby Ultra Organic Soft Diapers — EWG Verified. Inside of diaper non-detect organic fluorine, outside of diaper non-detect organic fluorine. (Use discount code “MAMAVATION” for 15% off sitewide no minimum purchase, eligible for use on subscriptions, 1 use per customer.) This means we did not find indications of PFAS on the inside or outside of this diaper.

Portrait Of Cute Laughing Black Infant Baby Lying On Bed, Adorable Little African American Child In White Bodysuit Relaxing In Bedroom And Looking At Camera

Additional Materials To Avoid in Reusable & Cloth Diapers

We were very surprised by the chemicals and materials used in the cloth diapering industry because when you look online for toxic-free diapering options, many websites recommend cloth diapers. So we started by interviewing a retired industry expert who started up her own cloth diaper company many years ago. In our interview, she told us she believed she was pushed out of the industry because she demanded better materials from her manufacturers which they did not have.

This story struck us as very problematic so we decided immediately to start testing cloth diapers for indications of PFAS “forever chemicals” in addition to disposable diapers and we are very glad we did.

Not only did we find indications of PFAS in some very popular cloth diaper products, but we also wanted to explore for you additional materials we found could be problematic inside cloth diapers:

  • Waterproofing Fabrics — These materials we found could be covered in PFAS “forever chemicals” as a way to keep the moisture inside the diaper. There are two basic fabrics we noticed that are used for the outer layer of waterproofing: Polyurethane Laminate (PUL) and Thermoplastic Polyurethane (TPU). Most of the time they are going together whereas the PUL is the fabric and the TPU is a thin plastic that goes over the fabric. PUL can be manufactured with toxic solvents unless it’s considered “Thermally Bonded PUL,” which is thermally bonded with heat, pressure, and mystery adhesives. However, all types are made from petroleum byproducts and can off-gas over time just like other types of petroleum products as they are washed and broken down over time.
  • Liner Fabrics — These fabrics are mostly different types of fleece, which is a fabric that is knit on one side and brushed on the other side to loosen the fabric and create plush. Options we found were microfleece, cotton or cotton blended fleece, polyester fleece, lycra spandex fleece, French terry fleece, & polar fleece. Some of these fleece absorbs water while others repel it. Most fleece fabrics are made from a type of polyester fiber. The polyester is made by using a chemical reaction involving petroleum and petroleum derivatives. These chemicals are heated for a time until they form a thick syrup, which then hardens, and is then spun and turned into thread. Occasionally other natural fibers are woven into the material such as cotton, wool, & hemp. These fabrics like polar fleece and microfleece can also be treated with PFAS “forever chemicals” that make them even more water-repellent.

Some websites advise customers to wash their diapers multiple times before using them. We are unconvinced washing in the laundry will completely break down these chemicals.

What materials should you focus on diapering your baby with instead? The best cloth diapers use organic cotton, wool, or hemp, however, most of them are made with PUL and TPU waterproof covers.

Babies sitting in their diapers

Toxicity of Plastics Used In Reusable Diapers or Cloth Diapers

A recent study covered in the Journal of Science & Technology looked at the toxicological and chemical signatures of the most common types of plastics using in vitro bioassays and nontarget high-resolution mass spectrometry. They found that “Most (74%) of the 34 plastic extracts contained chemicals triggering at least one endpoint, including baseline toxicity (62%), oxidative stress (41%), cytotoxicity (32%), estrogenicity (12%), and antiandrogenicity (27%).” Here is how they ranked the plastics from highest to lowest concern. Notice that PUR is close to the very top of concerns and therefore should not be used around infants inside diapers, especially if you are planning to wash over and over again which could break down the polymers over time.

  • PVC: polyvinyl chloride — highest concern
  • PUR: polyurethane — highest concern
  • LDPE: low-density polyethylene –medium concern
  • PLA: polylactic acid (found in lots of bioplastics) — medium concern
  • PP: polypropylene — medium concern
  • PS: polystyrene — medium concern
  • HDPE: high-density polyethylene — Lowest concern
  • PET: polyethylene terephthalate — Lowest concern

Pete Myers, Chief Scientist at Environmental Health Sciences, Adjunct Professor of Chemistry at Carnegie Mellon University, and Co-Author of Our Stolen Future, had this to say: “The chemical issues Mamavation has uncovered here sound like the Wild West. This is one industry that needs to clean up its act with much greater transparency and much stronger efforts to avoid toxic chemicals. Clearly, the chemistry of diapers can be as messy as what the babies unload into them. Actually, much messier because of the presence of chemicals like PUR and PFAS. In terms of cloth diapers, you are best off using organic cotton diapers that do not contain additives to make them more absorbent or more waterproof. Even PLA can be problematic.”

Baby diapers with female hand on blue background

How to Save on Disposable Diapers

Diapers can be so expensive, especially considering you are purchasing about 4,000 of them in the first year of your child’s life. We looked around for diapers that we have been able to “pass” through testing and scrutiny of disclosed materials. One way we found to save on diapers is to set yourself up on Amazon with automatic purchasing.

Amazon discounts diapers 20% when you sign up as an Amazon Prime member with their Subscribe and Save program. We found Pamper Pure, Dyper, Honest, Mama Bear, and a few more available. These brands represent the “better” not “best” categories. All you have to do is sign up for Amazon Prime and then join Amazon Family for free where you sign up to receive diapers automatically. You can sign up for any type of schedule ranging from delivery dates from 1-6 months.

You’ll also find plenty of brands that we have as “better” because they did not have indications of PFAS “forever chemicals,” however, those diapers may have other materials and ingredients that are not as safe overall.

Happy little newborn baby girl lying on the white bed in the bedroom, portrait of sweet adorable infant baby.

Other Categories of Products Mamavation Has Tested for Indications of PFAS “Forever Chemicals”

Before we launch into the raw data from our lab, we wanted to remind you about all the other studies we have done on indications of PFAS “forever chemicals” inside the food and consumer products you may bring inside your home. Each one of these studies were done in a similar fashion as this study with brands sent independently to the lab and raw data of those labs at the bottom of the post.

  • Soft Contact Lenses
  • Green Beauty Makeup
  • Dental Floss
  • Toilet Paper
  • Period Underwear
  • Tampons
  • Sanitary Pads, Pantiliners, & Incontinence Pads
  • Powdered Electrolytes
  • Butter Wrappers
  • Pasta & Tomato Sauces
  • Nut Butters (Peanut butter, etc.)
  • Cooking Oils (olive oil, almond oil, canola oil, etc)
  • Ketchup
  • Activewear (Yoga Pants)
  • Sports Bras
  • Parchment Paper
  • Cupcake Liners
  • Plastic-Free Straws
  • Fast Food Packaging
  • Children’s Probiotics
  • Kids’ Backpacks
  • Baby Strollers

One-year baby girl playing upside down on the street

Product Brands We Tested
To help our community make safer choices, Mamavation sent a wide range of disposable and cloth diapers to our EPA-certified laboratory for PFAS marker testing. All products were evaluated for total fluorine to identify potential indications of PFAS “forever chemicals.”

Below is the complete list of diaper brands included in our investigation.

Disposable & Cloth Diapers Tested by Mamavation

  • Attitude Eco Diapers Couches Baby Diapers

  • BabyCozy Bouncy Soft Baby Diapers

  • Babyganics Skin Love Diapers

  • Bamboo Nature Dream Diapers

  • EcoPeaCo Bamboo Diapers

  • Happy Little Camper Ultra-Absorbent Natural Diapers

  • Kirkland (Costco) Diapers

  • Kudos Diapers

  • Rascal & Friends Diapers

  • Alvababy Baby Swim Diapers

  • Alvababy Pocket Cloth Diaper

  • Bambino Mio Reusable Miosolo All-in-One Nappy

  • Bambino Mio Reusable Miosoft Two Piece Nappy Cover

  • Charlie Banana Reusable Swim Diaper

  • Charlie Banana One Size Diaper

  • GroVia Hybrid Shell Waterproof Diaper Cover

  • ONE by GroVia One Size Cloth Diaper

  • OsoCozy Cloth Diaper

  • Pampers Pure Protection Hybrid Diaper with Reusable Cover

  • Smart Bottoms Newborn Cloth Diaper

  • Cuties Complete Care Diapers

  • DYPER Plant-Based Bamboo Diapers

  • Eco by Naty Diapers

  • EcoOriginals Eco-Friendly Diapers

  • Hello Bello Diapers

  • Honest Company Diapers

  • Honest Training Pants

  • Huggies Pullups

  • Huggies Snug & Dry

  • LUVS Diapers

  • Mama Bear Gentle Touch Diapers

  • Millie Moon (Target) Diapers

  • Pampers Pure Diapers

  • Pampers Splashers Swim Pants

  • Pampers Swaddlers

  • Target Up & Up Pull Ups

  • TERRA Eco.+ Natural + Premium Plant-Based Nappy Pants

  • Beau & Belle Little Reusable Swim Diaper

  • Blueberry Training Pants

  • Bumgenius Diapers

  • Esembly Cloth Diapers

  • Fuzzi Bunz Cloth Diapers

  • FuzziBunz Organic Cloth Inserts

  • Rumparooz Cloth Diaper

  • Thirsties Natural One Size Diaper

  • Healthy Baby Ultra Organic Soft Diapers

  • Abby & Finn Diapers

  • Andy Pandy Bamboo Diapers

  • Coterie Diapers

  • Eco Boom Bamboo Diapers

  • Freestyle Hyper Bamboo Absorbent Diapers

  • Offspring Diapers

  • Pura Diapers Super Soft & Comfy

  • Seventh Generation Diapers

  • Cloth-EEZ Diapers

  • EcoAble Reusable Diapers

  • Pooters Hemp Fitted Reusable Diaper Insert

  • Puppi’s AI2 Cloth Diaper Insert

Brands marked with an asterisk did not provide full ingredient disclosure but were included for consumer context.

Want full access to the raw data, fluorine findings, and our recommendations for the safest diaper brands? Join our newsletter to access the complete buying guide with detailed lab results for every product.

Mamavation’s Investigation of Disposable Diapers & Cloth Diapers

Not Our Favorite Disposable Diapers & Cloth Diapers

Disposable Diapers

Reusable Cloth Diapers

Better Disposable Diapers & Cloth Diapers

Disposable Diapers

Reusable Cloth Diapers

Best Disposable Diapers & Cloth Diapers

Disposable Diapers

Reusable Cloth Diapers

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Reader Interactions

Comments

  1. Amy

    November 4, 2025 at 6:14 am

    Costco recently changed manufacturers for Kirkland diapers in 2025. Do you plan to retest the new version so moms can have updated information? I’d love to know whether the current product still shows organic fluorine.

    Reply
  2. Hannah Kurschat

    July 5, 2025 at 6:01 am

    When will this investigation be updated? Can you investigate the Everylife diapers? I’m super curious about them, they have the same ingredients almost as HealthyBaby for a lesser price but I feel like they have a strong chemical smell.

    Reply
  3. Katie

    April 17, 2025 at 10:04 am

    Could you test Joonya brand diapers please?

    Reply
  4. Heather

    March 21, 2025 at 3:57 pm

    Would you test the new Kirkland diapers? They are made by Cutie’s but I’m not sure the quality is the same. Thanks!

    Reply
  5. Whitney

    March 19, 2025 at 10:34 am

    Would love to have Parasol tested!

    Reply
  6. Holly

    December 30, 2024 at 11:14 am

    Can you please test earth and Eden and Amazon brand night time diapers?

    Reply
  7. Monica Johnston

    December 22, 2024 at 10:36 am

    Could you please test huggies the skin essentials brand. It seems to be the one brand that doesn’t give my baby diaper rash that I can buy at target.

    Reply
  8. M.J

    December 19, 2024 at 8:25 am

    Please test bamboo nappies, available from Amazon.

    Reply
  9. Jennifer Rosin

    December 18, 2024 at 6:46 pm

    Could you test the Sloomb Bamboo Cloth Diapers that they have in the market, my fiance and I are considering buying some in the near future and would like to make sure it’s the right choice.

    Reply
  10. Anonymous

    November 15, 2024 at 1:56 am

    Another request to test Parasol diapers please

    Reply
  11. Mila milne

    October 24, 2024 at 9:35 am

    Hey there,

    I’m surprised you didn’t mention “Joone” diapers from France. Best technology and their innovator is setting the benchmark in France.

    Please look into them and their CEO.

    We have ordered them to ship to Canada (customs are high but for us it is worth it).

    Regards

    Reply
  12. Megan Dawkins

    September 28, 2024 at 5:26 am

    I use rascal and friends and I’m confused about how they tested. Did one diaper test positive and the other did not?

    I also use red wood cloth diapers. It’s a small company and I’m wondering how I can find out if they are toxic?

    Reply
  13. Cg

    September 23, 2024 at 6:56 am

    Please test parasol.

    Reply
  14. Anna

    September 6, 2024 at 11:42 am

    Hi! The discount code for HealthyBaby does not work. I added a subscription order to my cart (automatically 30% off) and got the following error message: MAMAVATION couldn’t be used with your existing discounts.

    Reply
  15. Tina

    August 27, 2024 at 2:04 pm

    You have listed Coterie in your list of “best” diapers, but what do you make of the recent lawsuit against them that alleges their diapers contain PFAs? I wanted to try these diapers but now I’m not feeling super confident. https://news.bloomberglaw.com/product-liability-and-toxics-law/diaper-maker-says-false-ad-suit-over-pfas-should-get-tossed

    Reply
  16. Ana

    August 22, 2024 at 7:07 am

    What about EveryLife diapers?
    Have they been tested??

    Reply
  17. Brittany

    August 7, 2024 at 4:07 am

    Could you test HEB’s Field & Future day and overnight diapers? This is supposed to be a clean brand. HEB is a major grocery store in Texas that outcompetes other grocery stores.

    Reply
    • Angie Parkhouse

      August 26, 2024 at 8:07 am

      Yes please!!!

      Reply
  18. Rachel

    July 9, 2024 at 11:13 pm

    Why does it say “ECF” on the package of Pampers Pure if you claim they are “TCF”? Which is it? Thank you

    Reply
  19. Dee

    June 23, 2024 at 9:38 pm

    Is anyone else confused by the pampers pure description? It first states it does not contain perfumes. But then it states that it does. Is it saying that the company lied and testing was positive for perfumes?!? Please clarify as I personally don’t smell anything with these diapers and one of the main reasons for picking it was due to the no fragrance.

    Reply
    • Rachel

      July 9, 2024 at 11:09 pm

      I’m also confused. On the Pampers Pure package it says “ECF” and not “TCF”. Why is that? I thought they are supposedly TCF?

      Reply
  20. Katerina

    June 22, 2024 at 10:41 am

    Hello. I love your website. Can you please test parasol?

    Reply
    • Bricelda

      July 1, 2024 at 11:02 am

      So amazing that you do this! Please please test Parasol Next!!!

      Reply
  21. Anonymous

    June 11, 2024 at 8:03 am

    Hi,
    Could you help to test the brand Nest Diapers? They are made in North America, and are OEKO-TEX certified, thank you!

    Reply
  22. Katrina Hachinsky

    June 5, 2024 at 6:32 am

    BumGenius makes a big and bigger size for special needs older kids. wonder what is in their cloth diapers and if there are any other larger size diapers 75+ lbs?

    Reply
  23. cjk

    May 8, 2024 at 8:27 am

    Also would love to see EveryLife tested 🙂

    Reply
  24. Kristen

    May 1, 2024 at 5:47 am

    Thank you so much for this updated list! I would love to see how EveryLife diapers rank. They claim to be more natural, and I like their mission that they donate diapers and money to families in need.

    Reply
  25. Naomi

    April 30, 2024 at 12:51 pm

    Do you have any info on EveryLife diapers? Like them and support their company but would like to know more about chemical levels?

    Reply
    • Melody Correia

      April 29, 2025 at 8:36 am

      You need to fix bamboo to Bambo. I used these nearly exclusively on my son from 2015-2018 and I am sick that I did. They have a ton of certifications. According to the certifications they are the cleanest available option. I feel very very duped as a consumer, and like I cannot trust any company to be honest and transparent.

      Reply
  26. Sneha Roy

    February 27, 2024 at 2:12 pm

    Hi, can you also please comment on/test pura and ecopeaco diapers?

    Reply
  27. Kayla

    February 22, 2024 at 3:21 pm

    Can you please test Pura diapers?

    Reply
  28. Miryam Burnett

    February 12, 2024 at 8:07 pm

    So I have the GroVia Hybrids and it says the 323 Ppm but only for burgundy the color I have that resembles them is the color “Marsala” are those the same ones?
    Would you considered all to be somewhat toxic?

    Reply
  29. Tricia

    February 10, 2024 at 3:33 pm

    I would love to see you test Elskbar cloth diapers for PFAS. They say their shells also will get wet and need to be washed each time because they have have “built-in absorbency”. Would that mean it likely doesn’t have PFAS??

    Also, regarding TPU, the Elskbar website makes it sound like that is a more eco-friendly, non-toxic option. From their website:

    “The waterproof part of the diaper is made of the material TPU. Often, cloth diapers have PUL as the waterproof outer layer, but it is produced by a chemical process that is not that environmentally friendly. TPU, on the other hand, is manufactured during heat treatment and is therefore free of chemical glue. We are proud to offer cloth diapers with TPU.”

    Is that inaccurate?

    Reply
  30. Anonymous

    January 27, 2024 at 2:15 pm

    Are you aware that the healthy baby diapers specifically list on their website that the top sheet (which touches baby) is all plastic and not organic cotton? The back sheet has 15% organic cotton.. the part that doesn’t even touch the baby. I’d hate for readers to be led astray here.

    Reply
    • Peter

      May 29, 2024 at 3:59 pm

      Good find.

      Reply
  31. Angel

    December 6, 2023 at 12:17 pm

    Do you have any info on ecopea company disposable diapers and pull ups? They have made several lists for being non toxic and safe.

    Reply
  32. Natasha

    November 20, 2023 at 6:26 pm

    Can you please consider testing “field & future” diapers and pull ups, by H-E-B brand? They’re labelled as free from fragrance/chlorine bleaching/parabens/natural rubber latex, and are very cost-attractive ????. Thank you!

    Reply
  33. Emily Casalla

    November 19, 2023 at 5:40 am

    Did you test Thrive Market diapers for PFAS? If not, will you in the future? I’d love to see how those rank. Thanks!

    Reply
    • Miryam Burnett

      February 12, 2024 at 5:49 pm

      Same!

      Reply
  34. Anonymous

    November 10, 2023 at 12:50 pm

    Which was the OsoCozy cloth diaper tested? A prefold? A fitted? A cover? Was is organic cotton or conventional/would that make a difference?

    Reply
  35. Amber Cartey

    November 2, 2023 at 9:46 am

    So I used the Nora’s nursery cloth diapers before my baby was potty trained and right now I’m using the target up and up brand for the 3t-4t pull ups for my tow year old when she sleeps. Where do
    Those fall in this study?

    Reply
    • Leah Segedie

      November 3, 2023 at 12:39 pm

      We didn’t test that brand.

      Reply
    • Anonymous

      June 20, 2024 at 8:06 am

      Can you test bumgenius elemental diapers and nest disposable diapers?

      Reply
      • May

        April 9, 2025 at 8:47 am

        Can you do an update on this?

        Reply
      • NS

        September 9, 2025 at 8:43 pm

        Have you tested the Little Journey diapers from Aldi. They make a lot of great claims on the box, but a few websites have said they they aren’t very transparent with all the information/ingredients.
        I found a company that may be the ones providing the diapers to Aldi and made an inquiry about the ingredients. Waiting for a reply that they may or may not give, but wanted to ask here about it as well.

        This is the company I found. Whether or not they directly supply Aldi (U.S. or otherwise) I do not know. I asked that question in my inquiry as well.
        They do list some of the items that make up their diapers, but I am still not sure of the rest.
        Maybe you all had more information.

        https://www.diaperindustry.com/baby-diaper/little-journey-diapers.html

        Reply

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