For kids 5 years and older (school-age children, tweens and teens), this ingredient has moderate concern. It’s not one of the safest ingredients, but occasional short-term use in low-strength rinse-off products is less risky than regular leave-on use.
Check product labels and avoid products that list this ingredient for regular, leave-on use (like creams or lotions). Prefer rinse-off items (like some washes) with low concentrations. Don’t use on broken, red, or sore skin. Do a small patch test the first time: stop use and wash the area if your child gets redness, itching, or a rash. Keep products out of reach of children and ask your pediatrician if you’re unsure or if a large amount was accidentally applied or swallowed.
Health Canada restricts its cosmetic use — that means some governments limit how and where it can be used. A cosmetic safety review notes there is not enough safety information for products that remain on the skin (leave-on products). A European agency has identified possible reproductive or developmental concerns, and there are limited reports of skin irritation or allergy. The U.S. food regulator forbids this chemical in food. Because of these restrictions and gaps, avoid leave-on use and watch closely for skin reactions (sources: Health Canada; Cosmetic Ingredient Review; European Chemicals Agency; Environment Canada; U.S. FDA).
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This ingredient has the following documented risks:
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This ingredient may also be listed as:
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This ingredient is found in the following products:
This list shows products that contain 8-Hydroxyquinoline or its alternative names.
Scientific research related to this ingredient:
These research articles provide scientific evidence about 8-Hydroxyquinoline safety and effects.
8-Hydroxyquinoline is not recommended for 5+ year old children due to potential safety risks.
Some studies link this to future fertility or reproductive issues.
May mess with natural hormone development in babies and children.
Banned or heavily restricted in one or more countries.
8-Hydroxyquinoline is commonly found in skincare products, cosmetics, and topical applications. Always check ingredient labels before use.
The appropriate age depends on the specific ingredient properties and concentration. This analysis is for 5+ year old children. Use the age selector above to check other ages.
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