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Hidden Ingredients in Best Baby Wipes

Written by Irina Webb

The US law requires that manufacturers disclose most ingredients in baby wipes.  But in practice, they often contain undisclosed ingredients.  Today you will learn about the worst hidden ingredients in baby wipes, so you can make informed decisions.  It is important to read the ingredients and call manufacturers for the latest information because they make changes quite often, and usually without a lot of fanfare. 

Even if you have a brand you are comfortable with, watch the ingredients like a hawk, especially if your child reacts differently to the same brand of wipes you have been using.  Babies are small and vulnerable and cannot tell us if their skin hurts after wipes.  They are also more susceptible than adults to chemicals, many of which can be absorbed through the skin directly into their bloodstream.  That is why I believe we need to be extra careful with baby products.  Even the best baby wipes can have flaws.

Hidden Ingredients in Best Baby Wipes. A photo of a baby in grass.

What are the cloth wet wipes made of?

All wet wipes are made of some type of cloth.  Over the years, I have contacted more than 40 baby wipes companies and asked them what their baby wipes cloths are made of.  It is not easy to get information about the composition of the cloth.  Unfortunately, the law does not oblige companies to disclose the components of the cloth.  However, the make-up of the cloth is important because it comes in direct contact with the skin.  Thus, the cloths are one of the hidden ingredients in baby wipes.

Components of wet wipes cloth

Luckily, a lot of companies do disclose their materials voluntarily.  My survey showed that normally the cloth is made of viscose, polyester or polypropylene or a blend of two or all three of these.

Unfortunately, this is about all the companies will disclose.  Polypropylene is plastic.  Companies rarely disclose the composition of the plastic.  Polyester can be anything.  And viscose is derived from wood pulp.  The processing of wood pulp into a fiber can involve a lot of harsh chemicals.  None of them seem to be good enough to rub against the gentle baby skin.   All of them consist of hidden ingredients.

Some makers of what I consider to be the best baby wipes have started using cotton, and even organic cotton.  That’s a big improvement.  In my Baby Wipes Rating List, the cloth is part of my rating methodology.  It can help you decide what wipes to use on your baby, too.  I encourage you to contact companies and ask them about the cloth they use.  If they use cotton, ask them if it is organic.  I wholeheartedly believe that the more of us ask questions and demand transparency, the safer baby wipes we are going to have.  As noted below, I have seen that happen already.

What are some other hidden ingredients in baby wipes?

The other hidden ingredients include impurities, contaminants, and byproducts of the processes that manufacture cloth moisturizers.  In general, US law requires the disclosure of ingredients used to moisten the cloth, but some impurities can filter into the solution, as follows.

First, contaminants can occur as part of the manufacturing process.  Second, they can be released when a product is in a bottle or other type of package by design.  Third, a hidden ingredient can be a part of a blend or mixture and the law does not require the disclosure of the blend/mixture.  

Sadly, the FDA does not require these types of hidden ingredients to be disclosed on product labels and, thus, consumers do not know if their products are contaminated.  One way to be certain that you are not buying a contaminated product is to avoid products with ingredients that may be potentially contaminated or designed to release another substance.  That’s where this blog comes in handy!  I recommend not only the best baby wipes but also the best personal care, skincare, and beauty products.  I hope you will sign up to my weekly email and have a look around.

Here we will talk about these undisclosed ingredients in wet wipes.  This will help you answer the question: “Are these baby wipes safe?”

Formaldehyde as one of hidden ingredients in baby wipes

The U.S. Occupational Safety and Health Administration (OSHA) has recognized formaldehyde as a carcinogen.  The International Agency for Research on Cancer has defined formaldehyde as “carcinogenic to humans.”

The Environmental Working Group’s Skin Deep database has given it the highest score (on a scale from 1 to 10, with 10 being the worst) for its negative health impact.  Formaldehyde and formaldehyde-releasing preservatives are associated with widespread allergic contact dermatitis.

Moreover, the American Contact Dermatitis Society named formaldehyde as the Allergen of the Year for 2015 (source).  Formaldehyde is one reason for widespread allergic contact dermatitis.  It usually develops a few hours after the allergen (i.e., the substance to which the person is allergic) touches the skin and causes symptoms.  Learn how to protect yourself from formaldehyde in products.

Symptoms of exposure to formaldehyde

You don’t want formaldehyde to be one of the hidden ingredients in the baby wipes.  Can you imagine your precious baby going through any of the symptoms of exposure to formaldehyde? They may include:

  • Itchy, swollen, and red skin or dry and bumpy skin.
  • Blisters may develop if the reaction is more severe.
  • Blisters may break, leaving crusts and scales.
  • Skin may later flake and crack.
  • With long-term exposure to an allergen, the skin becomes thick, red, and scaly.
  • Over time, the skin can darken and become leathery.

Formaldehyde is a powerful chemical and a concentration of 30 ppm is enough to evoke an allergic reaction.  Some formaldehyde-releasing preservatives release a higher amount.  For example, quartenium-15 may release over 100 ppm, way above the amount needed to cause allergic contact dermatitis (source).

Formaldehyde-releasing preservatives as ingredients of baby wipes

Unfortunately, if you are trying to avoid formaldehyde, one of the hidden ingredients, you won’t find it listed as an ingredient.  Instead, look for these: 

  • Diazolidinyl Urea
  • DMDM Hydantoin
  • Imidazolidinyl Urea
  • Quaternium-15
  • Sodium Hydroxymethylglycinate
  • 2-Bromo-2-Nitropropane-1,3-Diol (Bronopol)
  • Polyoxymethylene Urea
  • 5-Bromo-5-Nitro-1,3 Dioxane
  • Methenamine
  • Glyoxal

The good and the bad news about formaldehyde in wet wipes

When I first surveyed the baby wipes industry in 2013, two brands – Kirkland Signature™ Baby Wipes and 365 Everyday Value® Wipes – contained formaldehyde-releasing preservatives.  A year after I published a well-received post, some safer preservatives took place of the formaldehyde-releasing ones.  Coincidence?  Perhaps, but I’d like to think that our consumer pressure had something to do with it.

In my Baby Wipes Rating List, you won’t find any baby wipes with formaldehyde-releasing hidden ingredients.  However, that does not mean that formaldehyde-releasing preservatives are not in use anymore.  Please be careful and read the ingredients when you are looking for the best baby wipes.

However, even when there are no formaldehyde-releasing preservatives on the product label, there may still be formaldehyde in the product.  Thus, for this 2019 study conducted by the American Contact Dermatitis Society (ACDS), researchers tested some popular baby wipes.  They discovered that almost a quarter of the tested wipes released formaldehyde, although they seemed to have no formaldehyde-releasing preservatives.  To see which wipes tested positive for formaldehyde, you can buy the full study report (as I did).  Alternatively, in my Baby Wipes Rating List I talk about the wipes tested by the ACDS that are included in my list.   

Ethylene Oxide and 1,4-Dioxane in baby wipes

Unfortunately, most manufacturers use harsh petrochemicals as raw materials to make their baby wipes.  To make these chemicals less irritating to the skin, they use the process of ethoxylation in which they add ethylene oxide.  The traces of unreacted ethylene oxide might remain in the final product and will not show up as a listed ingredient, which makes it one of the hidden ingredients. 

Moreover, the process of ethoxylation creates a byproduct called 1,4-dioxane — really nasty stuff.  Again, you won’t find 1,4-dioxane listed as an ingredient.  The law treats it as a contaminant and not an ingredient that needs to be disclosed.  Manufacturers can use a vacuum-stripping method to get rid of 1,4-dioxane, but if they don’t, the dangerous chemical can remain in the baby wipes.

Both ethylene oxide and 1,4-dioxane have been classified as carcinogens.  The Environmental Working Group has given it a rating of 5-8 depending on the use.   And it rates ethylene oxide as 8-10.  In addition, both ethylene oxide and 1,4-dioxane can irritate the skin.

Avoid baby wipes with the following listed ingredients!

Here are examples of ingredients of the wipes that may be contaminated with ethylene oxide and/or 1,4-dioxane.  Note that you can find polysorbate 20 even in baby wipes touted as the best baby wipes.

  • Bis-PEG/PPG-16/16 PEG/PPG-16/16 Dimethicone
  • Potassium Laureth Phosphate
  • Polysorbate 20
  • PEG-75 Lanolin
  • Ceteareth-20

How do you spot ethoxylated ingredients in baby wipes?

Watch out for ingredients that contain the following:

Words beginning with:

  • PEG-
  • Polysorbate-

Words ending in:

  • eth

There is no way of knowing for sure whether these dangerous hidden ingredients are present in a wet wipe (short of testing the wet wipes in use).  Therefore, out of an abundance of caution, I penalized baby wipes brands that use ethoxylated ingredients in my Baby Wipes Rating List.

Phthalates as hidden ingredients

You won’t find the word phthalates listed as one of the ingredients of baby wipes.  However, you might find the word fragrance or perfume or parfum, which is a mixture of hidden ingredients in baby wipes.  

Phthalates as part of fragrance in baby wipes

Most companies do not disclose fragrance ingredients to US consumers even though a lot of people have allergies to fragrance.   According to EWG, fragrance mixes often contain diethyl phthalate associated with hormone disruption.  Fragrance mixes have been associated with allergies, dermatitis, and respiratory distress.  The EWG has given fragrance a rating of 8 (source).

Luckily, baby wipes manufacturers are catching on and very few brands contain fragrance. You can find out which baby wipes still contain fragrance in the Baby Wipes Rating List.

Some so-called best baby wipes companies claim that they use “natural” fragrance.  Sounds nice, doesn’t it?  This can be tricky.  First of all, there is no legal definition for the word “natural,” and “natural” does not equal “safe.”  (Remember, crude oil is also natural.)  In addition, if the company does not disclose a full list of ingredients in their natural fragrance, it is best to use unscented baby wipes. 

The difference between fragrance-free and unscented baby wipes

Actually, fragrance-free baby wipes are safer than unscented wipes!  What is the difference?  According to the Environmental Protection Agency’s Safer Product Standards, there is a subtle difference.   The unscented claim means that the product may contain chemicals that mask the smell or odor of other ingredients of baby wipes.  Fragrance-free means there no masking chemicals in the wipes, and, thus, potentially no hidden ingredients.  See the difference?  So fragrance-free is what you want to look for.  To learn more surprising information about this, please read my post about natural fragrance.

Water Wipes and grapefruit seed extract

You might have heard about the Water Wipes brand.  Some people believe that they are the best baby wipes.  In fact, they claim to be the purest baby wipes.  Why?  Their claim to fame is that the water wipes ingredients are nothing else but 99% water and citrus grandis (grapefruit) seed extract.

Sounds good?  Not so fast!  I questioned them a lot about citrus grandis (grapefruit) seed extract.  I wrote about my investigation in a post.  As a result, they now disclose a previously hidden ingredient in citrus grandis (grapefruit) seed extract.  Please read the full story in my WaterWipes baby wipes post.

In fact, there might be other baby wipes that contain citrus grandis (grapefruit) seed extract as a preservative.  Please read the ingredients and consider avoiding it so you do not run the risk of another hidden ingredient in the wipes you use on your child.

Conclusion on choosing the best baby wipes

This concludes our discussion about the worst hidden ingredients in baby wipes, such as cloth ingredients, formaldehyde, ethylene oxide, 1,4-dioxane, and phthalates.   Please read the ingredients, contact companies, and ask questions.  Do not rely on marketing claims and advertisement.  And if you are busy, choose the best baby wipes for your baby with the help of my latest Baby Wipes Rating List which I update annually so as to keep abreast of the latest developments.

Additionally, check out my shop for non-toxic products and my other e-books. Contact me for a consultation if you need any help with healthy living. Finally, join my Savvy Consumer Circle for additional knowledge and fun.

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16 thoughts on “Hidden Ingredients in Best Baby Wipes”

  1. This was an interesting article. What are the methods available to test for ingredients in wipes and can any test determine specific concentration of certain ingredients?

    Would appreciate your input.


  2. Pingback: 23 Sources of Formaldehyde In Your Home

  3. Thank you for the information! 🙂 I just wanted to let you know that the Kirkland Signature™ Moist Flushable Wipes no longer include half of the bad ingredients, but still have fragrance. I was worried because we use those all the time, just not on the baby.

    1. Thank you, Megan, for heads up! Let me revise the post. Since I started reviewing wipes, I have seen lots of improvements! ~Irina

    1. Hi, Sydney, I normally either buy pictures from or photographer themselves directly or take pictures myself. Is there any specific question/request you have? ~Irina

  4. Marsela Armstrong


    The article you recommend “You do not have to be overwhelmed! You can choose the best baby wipes for your baby on the go.” contrains a list of “safe” baby wipes, which includes Pampers Sensative.

    I have packet of pampers sensative and have just found it contains Bis-PEG/PPG-16/16 PEG/PPG-16/16 Dimethicone, as do the pampers baby fresh.

    1. Hi, Marsela: I am sorry about this misunderstanding. I would never proclaim wipes or any other personal care product safe if they contain ethoxylated ingredients. The list that you are referring to is NOT a list of safe baby wipes. I rated over 30 different wipes, major brands, so you can see how the wipes are you using about planning to use stack up against others so you can make an informed decision and choose the best wipes for you. You can read my review of Pampers wipes here: Let me know what you think. ~Irina

  5. Amazing information all on one website vs investigating and cross checking many others. No wonder why my daughter has had no many reactions to nearly every wipe I have tried! Thank you so much for your hard work and dedication toward this topic!

  6. All these years later is there a revised list of ingredients or anything new to look out for or is it still the same things?

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