Is Formaldehyde Safe for Babies 0–12 months?
For babies 0–12 months, Formaldehyde is best avoided. IARC has classified it as a Group 1 concern.
Why this rating?
IARC has classified it as a Group 1 concern. A respiratory and skin sensitizer that can remain on skin after application. Not appropriate in any product for infants.
Editorial summary
This summary is editorial and is not part of the reviewed rating above. Ratings are unchanged.
At 0 to 12 months
Newborn and infant skin is exposed to wipes, lotions, washes and diaper creams every day. If a baby develops a persistent rash, mention the products you use to your pediatrician.
Why formaldehyde appears on baby product lists
Formaldehyde is classified by the International Agency for Research on Cancer as a Group 1 carcinogen, a classification based mainly on occupational exposure, and the European Union classifies it as a skin sensitizer. Its main concern in cosmetics is sensitization, meaning an allergic skin reaction, instead of cancer risk at the very low levels involved.
Formaldehyde releasers
Products rarely list formaldehyde itself. Many contain preservatives that slowly release formaldehyde, such as quaternium-15, DMDM hydantoin, imidazolidinyl urea, diazolidinyl urea and bronopol. A study using FDA data found that nearly a fifth of cosmetics in the United States contain a releaser. In the European Union, formaldehyde is banned as a cosmetic ingredient, releasers are allowed only within set limits, and a product that releases more than 0.001 percent (10 parts per million) must be labeled as releasing formaldehyde.
What to do
Read the ingredient list of lotions, washes, shampoos and wipes for the names above. A baby with a persistent rash that does not clear up with the usual care is a reason to talk to a pediatrician, who can consider whether a contact allergy is involved. Our entry rates formaldehyde as Avoid because the preservative has no benefit to a baby, and many products use other preservatives instead.
In short
In short, formaldehyde itself is rarely listed, so read the ingredient list for releasers such as quaternium-15, DMDM hydantoin and the ureas. A simple routine with few products on a baby's skin means fewer preservatives to track, and a pediatrician or dermatologist can help if a rash keeps returning.
How Formaldehyde is rated by age
The same ingredient can carry a different rating as a child grows. These are the ratings for each age group that has a guide for Formaldehyde.
| Age group | Rating |
|---|---|
| babies 0–12 months | Avoid |
| toddlers 12–24 months | Avoid |
Other age group
Is Formaldehyde safe for toddlers 12–24 months?Sources
- IARC — regulatory_or_public_health_body
- EU — regulatory_or_public_health_body
Reviewed by Morvarid Nikousokhantayar, MSc Nutrition, Certified Naturopath & Nutritionist — last reviewed September 27, 2026.
This is general feeding information, not medical advice. Talk to your pediatrician about your child's allergies and needs.
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