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Japanese Knotweed Extract supplements

Extra Strength Resveratrol
Our pick
Extra Strength Resveratrol
Swanson Vitamins
700 mg per serving $22.29
Most japanese knotweed extract per dollar of the 26 products here · contains nothing else
A high strength resveratrol product with 350 mg resveratrol derived from 700 mg Japanese knotweed extract per veg cap; Free Radical Scavenger; Supports Cellular Health… View at Swanson Vitamins →

Comparison

Serving size across these products log scale

100 mgtypical 700 mgour pick 8 mg 1,010 mg

Lowest priced

Bottle price only. Container sizes vary and servings per container are not stated consistently, so this is a starting point rather than a like-for-like comparison.

Vitacost, Grape Seed Extract Complex Including Trans-Resveratrol, 120 Capsules
Vita Cost · 4 ingredients
Antioxidant Support • Targeted Wellness • Potency, Purity, Pride • Standardized Ingredients •…Antioxidant Support • Targeted Wellness • Potency, Purity, Pride • Standardized Ingredients • Dietary Supplement • Powerful antioxidant properties. • Supports cardiovascular health. • Helps maintain a healthy inflammatory response. • Promotes healthy breast tissue and function.
$7.42
40 mg per serving
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Vitacost, Resveratrol + Grape Seed & Red Wine Extracts, 120 Capsules
Vita Cost · 3 ingredients
Supports Cardiovascular Health • Targeted Wellness • Potency · Purity · Pride • Standardized…Supports Cardiovascular Health • Targeted Wellness • Potency · Purity · Pride • Standardized Ingredients • Antioxidant Support • Easy To Swallow • Dietary Supplement
$7.90
75 mg per serving
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Vitacost, Resveratrol With Calcium, 120 Capsules
Vita Cost · 2 ingredients
Standardized To 50% Resveratrol (100 mg) • Supports Cardiovascular Health • Targeted Wellness…Standardized To 50% Resveratrol (100 mg) • Supports Cardiovascular Health • Targeted Wellness • Potency - Purity - Pride • Vegetarian • Standardized Ingredient • Antioxidant Support • Dietary Supplement
$11.99
200 mg per serving
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Vitacost, Resveratrol + Grape Seed & Red Wine Extracts, 240 Capsules
Vita Cost · 3 ingredients
Supports Cardiovascular Health • Targeted Wellness • Potency - Purity - Pride • Standardized…Supports Cardiovascular Health • Targeted Wellness • Potency - Purity - Pride • Standardized Ingredients • Antioxidant Support • Easy To Swallow • Dietary Supplement
$13.43
75 mg per serving
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Most japanese knotweed extract per serving

Ranked by the amount stated on the label. mg is the unit most brands use for japanese knotweed extract, and only products measured that way are ranked here — every product here uses it. Serving sizes differ between brands, so check the label for how many capsules or tablets that is.

Reserveage Beauty, Resveratrol, 60 Veggie Capsules
Vita Cost · 2 ingredients
#1 Resveratrol Supplement Brand+ • 4-Hour Sustainable Release • Trans-Resveratrol 1000 mg •…#1 Resveratrol Supplement Brand+ • 4-Hour Sustainable Release • Trans-Resveratrol 1000 mg • Cellular Antioxidant, Cognitive And Immune Support • Gluten Free • Vegan • Dietary Supplement
1010 mg
$84.14
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Extra Strength Resveratrol
Swanson Vitamins · single ingredient
A high strength resveratrol product with 350 mg resveratrol derived from 700 mg Japanese…A high strength resveratrol product with 350 mg resveratrol derived from 700 mg Japanese knotweed extract per veg cap; Free Radical Scavenger; Supports Cellular Health
700 mg
$22.29
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Resveratrol
Swanson Vitamins · 2 ingredients
Resveratrol dietary supplement; Provides potent antioxidant defense against free radicals;…Resveratrol dietary supplement; Provides potent antioxidant defense against free radicals; Great cardiovascular health supplement; Each daily serving equals the resveratrol content of 50 bottles of red wine
672 mg
$25.64
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Vitacost, Trans-Resveratrol, 490 mg, 60 Capsules
Vita Cost · single ingredient
Targeted Wellness • Antioxidant Support for Heart Health • Potency, Purity, Pride •…Targeted Wellness • Antioxidant Support for Heart Health • Potency, Purity, Pride • Standardized Ingredient • Vegetarian • Antioxidant Support • Dietary Supplement • A natural antioxidant for cardiovascular health. • Scientific evidence indicates the polyphenol resveratrol is responsible for the cardioprotective properties of red wine.
500 mg
$24.39
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Nothing but japanese knotweed extract

Products where japanese knotweed extract is the only ingredient we found — useful if you are building a stack deliberately and don't want extras you didn't choose.

Force Factor Resveratrol
Muscle & Strength · single ingredient
A Force Factor Product Formulated for Healthy Aging Cardiovascular health & free radical…A Force Factor Product Formulated for Healthy Aging Cardiovascular health & free radical scavenger* 200mg resveratrol per capsule Vegan and non-GMO NO artificial dyes, preservatives or gelatin
$18.99
421 mg per serving
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Extra Strength Resveratrol
Swanson Vitamins · single ingredient
A high strength resveratrol product with 350 mg resveratrol derived from 700 mg Japanese…A high strength resveratrol product with 350 mg resveratrol derived from 700 mg Japanese knotweed extract per veg cap; Free Radical Scavenger; Supports Cellular Health
$22.29
700 mg per serving
View
Vitacost, Trans-Resveratrol, 490 mg, 60 Capsules
Vita Cost · single ingredient
Targeted Wellness • Antioxidant Support for Heart Health • Potency, Purity, Pride •…Targeted Wellness • Antioxidant Support for Heart Health • Potency, Purity, Pride • Standardized Ingredient • Vegetarian • Antioxidant Support • Dietary Supplement • A natural antioxidant for cardiovascular health. • Scientific evidence indicates the polyphenol resveratrol is responsible for the cardioprotective properties of red wine.
$24.39
500 mg per serving
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Covers the most in one bottle

These contain japanese knotweed extract plus the most other ingredients we found — fewer bottles if the rest of your stack overlaps.

Vitacost, Synergy®, Women's Multivitamin With Iron, 240 Capsules
Vita Cost · 43 ingredients
Everyday Essentials • Potency - Purity - Pride • Physician Formulated • High Potency…Everyday Essentials • Potency - Purity - Pride • Physician Formulated • High Potency Multivitamin-Mineral • Enhanced Absorption • Dietary Supplement
43 ingredients
$39.99
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Vitacost, Synergy®, Women's Multivitamin, 240 Capsules
Vita Cost · 42 ingredients
Not Formulated with Iron • Everyday Essentials • Potency - Purity - Pride • Physician…Not Formulated with Iron • Everyday Essentials • Potency - Purity - Pride • Physician Formulated • High Potency Multivitamin-Mineral • Enhanced Absorption • Dietary Supplement
42 ingredients
$45.99
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Vitacost, Synergy®, Women's Multivitamin, 120 Capsules
Vita Cost · 42 ingredients
Not Formulated with Iron • Everyday Essentials • Potency - Purity - Pride • Physician…Not Formulated with Iron • Everyday Essentials • Potency - Purity - Pride • Physician Formulated • High Potency Multivitamin-Mineral • Antioxidant Support • Dietary Supplement
42 ingredients
$24.99
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Usually combined with

What actually shares a bottle with japanese knotweed extract, counted across these 26 products.

Vitamin C · 11Vitamin D3 (Cholecalciferol) · 9Calcium · 9Grape Extract · 9BioPerine (Black Pepper Extract) · 8Quercetin · 8Zinc · 8Copper · 8
Build a stack with japanese knotweed extract

Add the other ingredients you want and find the fewest bottles that cover them.

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