Japanese Knotweed
by Earthborn Elements · capsule · 200 capsules
- On the market (NIH)
- DSLD label 319597
- Serving 1 capsule
- 200 servings
Japanese Knotweed by Earthborn Elements lists one ingredient: 375 mg of polygonum cuspidatum per serving of 1 capsule. Its current label entered the NIH Dietary Supplement Label Database on December 21, 2024.
What is in Japanese Knotweed?
Each row as the label prints it, per serving of 1 capsule. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Polygonum cuspidatum | 375 mg | Higher than 74% of 269 products listing hu zhang (median 150 mg). Per day at the most servings: 750 mg. |
Source: NIH ODS Dietary Supplement Label Database, label 319597 (entered December 21, 2024), version 9.4.0. See the label on DSLD or its label image (PDF). Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.
Is that a lot?
Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient.
The NIH database records 1 to 2 servings a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.
The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.
Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.
Which products have the closest formulas?
6 products list the very same ingredients; the nearest amounts come first.
- Double Strength Clinical ResveratrolOL Olympian Labs same ingredients
- Extra Strength Researched Resveratrol 300 mgPrescribed Choice same ingredients
- Bioforte ResveratrolBiotivia · off the market same ingredients
- Clinical Resveratrol 500 mgOL Olympian Labs · off the market same ingredients
- ResveratrolJuvenon same ingredients
- Resveratrol PlusSeeking Health same ingredients
Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.
What does the label say about taking it?
Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.
- Directions
- Suggested use: As a dietary supplement, take 1 capsule 1 to 2 times daily, preferably with meals. Take with at least 8 oz of liquid.
- Warnings
- If pregnant, nursing, or taking medications, consult your physician.
Source: label statements in DSLD label 319597.
What else is on the label?
Other ingredients: Gelatin.
How many labels does Japanese Knotweed have?
One label is on file, entered on December 21, 2024.
- Label 319597 (current) Entered December 21, 2024 · on the market · 200 capsules
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Earthborn Elements (distributor), Beaverton, Oregon. All Earthborn Elements products.