Resveratrol
Scored by the Formulate Research Team · Last reviewed July 2026
Score Breakdown
Three factors carry this score; three more are checked separately and can only take points away. Hover or tap to see what drove each one.
Ingredients per Serving
| Ingredient | Amount |
|---|---|
| Japanese Knotweed Rhizome, Root Extract | 400 mg |
| Grape Seed Extract | 10 mg |
Certifications & Testing
Other Ingredients
Hypromellose, Microcrystalline Cellulose, Maltodextrin, Stearic Acid, Silicon Dioxide
Recommended Use
Suggested Usage: Take 1 capsule daily.
Warnings
Caution: For adults only. Keep out of reach of children. Resveratrol may interact with many pharmaceutical medications (especially NSAIDs, including diclofenac). Consult physician if pregnant/nursing, taking medication, or have a medical condition before using this product. This product may cause digestive upset in some sensitive individuals. If you experience any gastrointestinal discomfort after
Frequently Asked Questions
What is NOW Foods Resveratrol's Formulate score?
NOW Foods Resveratrol scores 75 out of 100 (grade B+) on Formulate's ingredient-level rubric: clinical evidence, dose accuracy and bioavailability carry the score, while manufacturing, transparency and safety are checked separately and can only deduct.
Is NOW Foods Resveratrol worth it?
NOW Foods Resveratrol scores 75/100 (grade B+). That's an above-average result — most of its doses and ingredient forms are well-chosen, with only minor gaps in dosing, transparency, or testing. Formulate grades every product with the same automated rubric, so the score reflects the formula — not marketing or sponsorships.
What's in NOW Foods Resveratrol?
Each serving contains Japanese Knotweed Rhizome, Root Extract (400 mg), Grape Seed Extract (10 mg). Serving size: 1 Veg Capsule(s). 120 servings per container.
How do I take resveratrol?
Suggested Usage: Take 1 capsule daily.
Who makes Resveratrol?
Resveratrol is made by NOW Foods. See Formulate's full grade and product lineup for NOW Foods on its brand page.
Is NOW Foods Resveratrol third-party tested?
NOW Foods lists the following certifications and testing for this product: Vegan, Vegetarian, Gluten-Free, Dairy-Free.
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Disclosure. Formulate may earn a commission from purchases made through links on this page. Commissions never influence scores — every product is graded by the same automated rubric. This page is for educational purposes only and does not replace advice from a qualified healthcare provider.