Japanese Knotweed Extract


Botanical name: Polygonum cuspidatum

Part used: Dried roots

Ingredients: Dried Japanese Knotweed roots, certified organic non-GMO cane alcohol and pure Adirondack water.

Percentage of alcohol used: 45-50%

Ratio plant to menstruum: 1:5

Safety considerations: None noted

Origin: USA & China 

About: Japanese Knotweed root, a member of the Buckwheat family, has many benefits, some of which are due to its high level of resveratrol which offers cardio-vascular support, including protection of the blood vessels. Japanese knotweed root may also support brain and immune function, protect the body from endotoxins and address the inflammatory process. Honeybees and other pollinators love to visit the late-blooming flowers of this tall, bamboo-like plant in the early fall.

Recommended Dosage: 30-60 drops OR 1/4-1/2 tsp, 3-6 times per day in juice or water. *Please note our recommended dosage may differ from other sources.

Also available as a Glycerite

*This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Customer Reviews

Based on 6 reviews
Deborah Moyer
Chronic Lyme Pain

I started the Knotweed along with CSA, Black Walnut and Skullcap for my chronic Lyme with intermittent joint, bone and muscle pain. It’s only been one week and already my pain is much less frequent and decreased in severity. I am also sleeping a lot more soundly.
I have started slowly, starting one extract at a time. I’m up to 6 drops of each in a cup of water 2 times daily. Hopefully I can get up to 30 drops of each and take for a few months.

Sue Spencer

Couldn’t be more pleased with service and extract… Highly recommended!


Works very well, just wish price would be lower for repeat customers who are dependent on it.


Thanks for
The super fast ship


Great products