Is quaternium-15 in baby products safe?
Use caution with quaternium-15 in baby products. It is a formaldehyde-releasing preservative. In a 2021 J Am Acad Dermatol analysis, quaternium-15 caused positive patch-test reactions in 7.7% of patch-tested patients.
Short answer: Use caution, especially for babies with eczema, rashes, or reactive skin. Quaternium-15 is a formaldehyde-releasing preservative, so this is a label check worth taking seriously.
What the research says
The 2021 J Am Acad Dermatol study Contact dermatitis associated with preservatives: Retrospective analysis of North American Contact Dermatitis Group data, 1994 through 2016. reviewed 50,799 patch-tested patients. It found that 22.3% had a positive patch-test reaction to at least 1 preservative. Quaternium-15 caused positive reactions in 7.7% of these patch-tested patients.
How to check the label
- Look for quaternium-15 by name in the ingredient list.
- Be extra strict with leave-on products like lotion and cream.
- For rinse-off products, watch for redness, itching, or repeat rash patterns.
- If your child has eczema, bring the ingredient list to your pediatrician or dermatologist.
The practical answer
When two baby products do the same job, choose the one without quaternium-15 or other formaldehyde-releasing preservatives. This is a simple label check with a real skin-allergy reason behind it.
The research at a glance
| Study | Journal | Year |
|---|---|---|
| Contact dermatitis associated with preservatives: Retrospective analysis of North American Contact Dermatitis Group data, 1994 through 2016. | J Am Acad Dermatol | 2021 |
What to use instead
For bath time, browse baby soap and shampoo options, then check labels for quaternium-15 and other formaldehyde-releasing preservatives before buying.
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