Source Naturals Resveratrol 500™, 500 mg, 30 Tablets supplement bottle
Source Naturals

Resveratrol 500™, 500 mg, 30 Tablets

What We Researched
5 active ingredients analyzed · 5 inactive ingredients decoded · 1 brand certification checked · 1 retailer compared · Last updated: Mar 2026
95
Product Score Excellent
66
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Polygonum cuspidatum Root Ext. 1,060 mg
Yielding Total trans-Resveratrols 500 mg
Red Wine Extract 500 mg
Bioavailability Very Good

Absorption Rating

  • Polygonum cuspidatum Root Ext. Fair
  • Yielding Total trans-Resveratrols Good
  • Red Wine Extract Good
Other Ingredients Excellent

Fillers & Additives

  • Microcrystalline Cellulose
  • Hydroxypropyl Cellulose
  • Stearic Acid
  • Modified Cellulose Gum
  • Silica
Efficacy Excellent

Dosage Analysis

  • Polygonum cuspidatum Root Ext. 1,060 mg Effective
  • Yielding Total trans-Resveratrols 500 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Calories 15
Total Carbohydrate 1 g <1%*
Polygonum cuspidatum Root Ext. 1,060 mg
Yielding Total trans-Resveratrols 500 mg
Red Wine Extract 500 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Microcrystalline Cellulose Safe

Adds bulk to small-dose supplements to make tablets/capsules a manageable size.

Hydroxypropyl Cellulose Safe

Binds tablet ingredients and can form tablet coatings.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Modified Cellulose Gum Generally_safe

It is used to improve the texture and stability of products.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$16$15$14$13$12 Mar 12 $14.09
iHerb

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
Source Naturals

Founded 1982 · Scotts Valley, CA, USA · 837 products · sourcenaturals.com/

Certifications

1 certification
Fda Gmp Inspections Verified Source

Transparency

2 claims
Third Party Testing Claim — Claimed Source
In House Testing — Verified Source
Related Supplements
Frequently Asked Questions
Is Source Naturals Resveratrol 500™, 500 mg a good supplement?

Source Naturals Resveratrol 500™, 500 mg, 30 Tablets received a product quality score of 95/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 5 active ingredients Of the 5 inactive ingredients, 4 are rated safe and 0 are flagged for review. The manufacturer, Source Naturals, holds a brand trust score of 66/100 with 1 verified certifications including Fda Gmp Inspections.

What are the ingredients in Source Naturals Resveratrol 500™, 500 mg?

Source Naturals Resveratrol 500™, 500 mg contains 5 active ingredients: Calories (15), Total Carbohydrate (1 g), Polygonum cuspidatum Root Ext. (1,060 mg), Yielding Total trans-Resveratrols (500 mg), Red Wine Extract (500 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Source Naturals Resveratrol 500™, 500 mg safe to take?

Source Naturals Resveratrol 500™, 500 mg, 30 Tablets has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Source Naturals a trustworthy supplement brand?

Source Naturals receives a brand trust score of 66/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1982 and headquartered in Scotts Valley, CA, USA, the company offers 837 products in their lineup. They hold 1 verified certifications including Fda Gmp Inspections. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. No regulatory violations or FDA warning letters were found in our research.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.