For infants (6–12 months), this fragrance ingredient is likely low risk in the tiny amounts used to scent products, but there is some limited evidence from government studies of possible developmental or mild hormone-related effects. Because babies are more sensitive, we keep exposure low.
Prefer fragrance-free baby products when possible. If a product does contain this ingredient, use only a small amount, avoid applying it to large areas of baby’s skin or to broken skin, keep it away from the face and mouth, and do not use multiple fragranced products in the same routine. Do a small patch check on the inner forearm and wait 24 hours before wider use. Stop use and wash the area if you see redness, rash, swelling, or any breathing change, and check with your pediatrician if you are unsure.
Watch for skin redness, rash, hives, swelling, or breathing changes — these are signs of irritation or allergy and should prompt stopping the product. Some government toxicology reports note limited evidence of developmental effects and weak hormone-related activity (reported by the National Toxicology Program), so avoid routine whole-body or frequent use on babies. Other agencies note it is allowed for limited uses (FDA) and not expected to be highly toxic or persistent in the environment (Environment Canada, European Chemicals Agency).
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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 Gamma Undecalactone or its alternative names.
Scientific research related to this ingredient:
These research articles provide scientific evidence about Gamma Undecalactone safety and effects.
Yes, Gamma Undecalactone is generally considered safe for 6-12 month old babies based on current research.
May mess with natural hormone development in babies and children. This is especially important for babies whose skin and systems are still developing.
Acts like fake hormones in the body, confusing natural signals. This is especially important for babies whose skin and systems are still developing.
Possible effects on early brain growth and mental development. This is especially important for babies whose skin and systems are still developing.
Some studies link this to future fertility or reproductive issues. This is especially important for babies whose skin and systems are still developing.
Possible negative effects on the environment This is especially important for babies whose skin and systems are still developing.
Gamma Undecalactone 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 6-12 month old babies. Use the age selector above to check other ages.
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