Leptospermum Scoparium Leaf Extract
Mānuka leaf and oil have a history of traditional use and demonstrated antimicrobial activity; they are not on the EU Novel Food authorization list as a food and not formally GRAS in the US. Topical and oral safety appear good in available literature, but the leaf extract has limited regulatory food-safety data.
What it is
Leaf extract of mānuka (Leptospermum scoparium); the same plant whose flowers produce mānuka honey. Used in cosmetics and herbal products.
Cosmetic and herbal-tea ingredient; some traditional Māori medicinal use.
Why it's flagged
- limited regulatory food-safety review
What regulators actually say
"Manuka (Leptospermum scoparium) oil exhibits broad-spectrum antimicrobial activity in vitro."
Regulatory status
United States — FDA
Not on FDA GRAS list as such; sold as supplement/cosmetic
European Union — EFSA
Not on EU Novel Food authorization list
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