For adults: this ingredient is of moderate concern. Itβs used as an antimicrobial, but some governments limit how it can be used in cosmetics, and safety for products that stay on the skin is not fully known. Skin irritation or allergy is possible but not common.
If you see 8-hydroxyquinoline on an adult skin product: prefer rinse-off products (wash-off cleansers) over leave-on creams or lotions; avoid products that donβt list concentration or safety testing; do a small patch test on healthy skin before regular use; stop use if you get redness, itching, blistering, or any new skin reaction; if you are pregnant or breastfeeding, avoid products with this ingredient when possible and talk with your healthcare provider before using them.
Do not use on broken or irritated skin. Regulators (Health Canada and EU cosmetic rules) restrict or limit its use in cosmetics, and an industry safety review notes uncertainty for leave-on products β this is the reason for extra caution. A European chemicals agency listing indicates there may be possible effects on reproduction or development, so avoid use during pregnancy and breastfeeding. The US food authority prohibits this substance in food β it should never be ingested. Watch for skin irritation or allergic reactions and stop use immediately if they occur.
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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 adults 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 adults. Use the age selector above to check other ages.
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