For school-age children (5+ years), undecane is low risk when used on the skin in normal cosmetics. Regulatory reviews (EPA and Environment Canada) flag low concerns for cancer or allergic effects and do not expect it to build up in the body. There is a note about possible environmental harm.
Use products containing undecane as directed. Do a small patch test on the inside of your child’s forearm before first use. Avoid putting the product on cuts, scrapes, or very red or irritated skin. Keep the product away from your child’s eyes and mouth and supervise use to prevent swallowing. If your child’s skin becomes irritated, rinse the area and stop using the product.
Stop use and seek medical advice if your child gets a rash, swelling, or trouble breathing after contact. Do not let children ingest the product. Avoid heavy repeated application over large areas of skin. Be mindful of disposal: Environment Canada notes possible environmental toxicity, so avoid pouring large amounts down drains or releasing large volumes into the environment. Sources of safety findings: U.S. EPA and Environment Canada reviews.
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Yes, Undecane is generally considered safe for 5+ year old children based on current research.
Possible negative effects on the environment
Undecane 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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