Polygonum cuspidatum root extract

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AKA: Japanese Knotweed
Plant-Derived
Antioxidant
Extract
Not Clean
OriginNative to East Asia, Japan, China. Derived from the roots of Polygonum cuspidatum, a plant native to East Asia belonging to the Polygonaceae family. Extracted from dried roots through solvent extraction methods to obtain concentrated bioactive compounds.
Polygonum Cuspidatum Root Extract is an extract of the roots of the Japanese Knotweed, Polygonum cuspidatum, Polygonaceae
Family
Polygonaceae (Buckwheat family)
Plant Part
Root
Lifeform
Perennial
Climate
Seasonally dry tropical
CAS #
-
Form
Liquid
Skin Types
●all-skin-types
Best For
Antioxidant
Pregnancy & Breastfeeding Safe
Yes
Functions
Antioxidant
Fights free radicals — the unstable molecules from UV, pollution, and stress that break down collagen and cause premature aging.
Neutralizes Free Radicals
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed0 reviews
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Insufficient
Pregnancy
Yes
Regulatory Status
USAunder review
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: Kew POWO · CosIng · EWG · CIR