Quaternium-91
1-2 year old toddlers • Skin contact product
Check for Different Age (6 available)
Is this toddler-safe to use Quaternium 91?
ℹ️General Overview
For toddlers (1-2 years) Quaternium-91 is probably low risk in small, occasional amounts on the skin. But some animal and lab studies show possible effects on reproduction, hormones, and nerve cells when exposure is higher, so care is recommended.
✅What to Do
If you use a product that lists Quaternium-91: choose products made for young children, use them sparingly, prefer rinse-off products (like shampoos) rather than leave-on lotions, do a small skin patch test first, avoid application on broken or red skin, keep it away from your child’s eyes and mouth, and stop use and see a doctor if you notice redness, rash, swelling, or breathing problems.
⚠️Warnings
Watch for skin irritation or allergic reaction and stop use if these occur. The caution comes from animal and laboratory studies showing reproductive effects in mice and laboratory evidence of hormone and nerve-cell effects — for example: "Quaternary Ammonium Disinfectants Cause Subfertility in Mice by Targeting both Male and Female Reproductive Processes" (2015-11-03); "Exposure to common quaternary ammonium disinfectants decreases fertility in mice" (2014-12-01); "Identification of Environmental Quaternary Ammonium Compounds as Direct Inhibitors of Cholesterol Biosynthesis" (2016-06-01); a lab study showing nerve-cell effects (2021-05-01); and a report of altered toxicology endpoints in humans after exposure to common quaternary ammonium disinfectants (2021-01-01). These studies involve related quaternary ammonium compounds and higher or repeated exposures than you’d get from typical low-dose cosmetics. Avoid products intended for disinfection or high-concentration uses, and tell your pediatrician if your child has repeated skin problems after using a product that contains this ingredient.
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Safety Risk Labels
This ingredient has the following documented risks:
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Alternative Names for Quaternium-91
This ingredient may also be listed as:
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Products Containing Quaternium-91
This ingredient is found in the following products:
This list shows products that contain Quaternium-91 or its alternative names.
Common Questions About Quaternium-91
Is this toddler-safe to use Quaternium-91?
Use caution with Quaternium-91 for 1-2 year old toddlers. Some safety concerns have been identified.
What are the fertility risks of Quaternium-91 for toddlers?
Some studies link this to future fertility or reproductive issues. Young children may be more sensitive to these effects.
What are the organ risk risks of Quaternium-91 for toddlers?
May harm organs like liver, kidneys, or lungs with repeated use. Young children may be more sensitive to these effects.
What products contain Quaternium-91?
Quaternium-91 is commonly found in skincare products, cosmetics, and topical applications. Always check ingredient labels before use.
When can toddlers using products with Quaternium-91?
The appropriate age depends on the specific ingredient properties and concentration. This analysis is for 1-2 year old toddlers. Use the age selector above to check other ages.
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