Phytonadione (vitamin K1) is generally low risk for young children aged 2–5. It’s not thought to cause cancer or long‑term harm, and irritation is uncommon, but some rules in certain countries limit its use in everyday skin products.
If you plan to use a product with phytonadione on a toddler or preschooler: use only small amounts, apply once to a small patch of skin (behind the ear or inner forearm) and wait 24 hours to check for redness or swelling, keep it off the face and away from the eyes, don’t apply to cuts or broken skin, avoid daily large‑area use, and talk with your pediatrician before repeated or large‑area use.
Regulatory warning: some regions restrict or ban this ingredient for cosmetics (see EU Cosmetics Directive). Safety notes from governmental chemical agencies report limited evidence of skin and lung irritation (European Chemicals Agency) and classify it as not expected to be systemically toxic (Environment Canada). Because of the regulatory restriction and the irritation reports, avoid cosmetic products that list it for general beauty use on children, watch for any skin redness, swelling, blistering, or breathing difficulty, and stop use and call your doctor if those occur.
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Yes, Phytonadione is generally considered safe for 2-5 year old children based on current research.
Banned or heavily restricted in one or more countries. Young children may be more sensitive to these effects.
Possible negative effects on the environment Young children may be more sensitive to these effects.
Phytonadione 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 2-5 year old children. Use the age selector above to check other ages.
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