Nature's Way Masquelier's Tru-OPCs supplement bottle
Nature's Way

Masquelier's Tru-OPCs

What We Researched
1 active ingredient analyzed · 7 inactive ingredients decoded · 5 brand certifications checked · 1 retailer compared · Last updated: Mar 2026
100
Product Score Excellent
95
Brand Score Excellent

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Grape seed extract (as Oligomeric Procyanidins, other active Polyphenols) 150 mg †
Bioavailability Excellent

Absorption Rating

  • Grape seed extract (as Oligomeric Procyanidins, other active Polyphenols) Good
Other Ingredients Excellent

Fillers & Additives

  • Cellulose
  • Maltodextrin
  • Sodium Croscarmellose
  • Stearic Acid
  • Hypromellose
  • Silica
  • Glycerin
Efficacy Excellent

Dosage Analysis

  • Grape seed extract (as Oligomeric Procyanidins, other active Polyphenols) 150 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Grape seed extract (as Oligomeric Procyanidins, other active Polyphenols) 150 mg †

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Cellulose Safe

Provides bulk and structure in tablets and capsules.

Maltodextrin Generally_safe

Helps carry and stabilize active ingredients. Provides bulk.

Sodium Croscarmellose Generally_safe

It is used as a binder and disintegrant to help tablets dissolve.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Hypromellose Safe

Forms vegetarian capsule shells. Dissolves easily in the stomach.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Glycerin Safe

Retains moisture and helps dissolve ingredients in softgels and liquids.

Price Comparison

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

Brand Trust Report
Nature's Way

Founded 1969 · Green Bay, Wisconsin, USA · 481 products · naturesway.com

Certifications

5 certifications
Consumerlab Verified Source
Labdoor Verified Source
Non Gmo Project Verified Source
Nsf Gmp Verified Source
Usda Organic Verified Source

Transparency

5 claims
Third Party Testing Claim — Verified Source
Coa Availability — Claimed Source
Testing Lab Disclosure — Verified Source
In House Testing — Verified Source

Violation History

3 incidents
Fda Warning Violations of the Foreign Supplier Verification Program (FSVP) regulation.2022-12-20Source
Lawsuit Mislabeled and fraudulent herbal supplements.2015Source
Recall Nettle capsules2002-06-28Source
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Frequently Asked Questions
Is Nature's Way Masquelier's Tru-OPCs a good supplement?

Nature's Way Masquelier's Tru-OPCs received a product quality score of 100/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 1 active ingredients with 30 servings per container. Of the 7 inactive ingredients, 5 are rated safe and 0 are flagged for review. The manufacturer, Nature's Way, holds a brand trust score of 95/100 with 5 verified certifications including Consumerlab, Labdoor, Non Gmo Project, Nsf Gmp.

What are the ingredients in Nature's Way Masquelier's Tru-OPCs?

Nature's Way Masquelier's Tru-OPCs contains 1 active ingredients: Grape seed extract (as Oligomeric Procyanidins, other active Polyphenols) (150 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Nature's Way Masquelier's Tru-OPCs safe to take?

Nature's Way Masquelier's Tru-OPCs 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 Nature's Way a trustworthy supplement brand?

Nature's Way receives a brand trust score of 95/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1969 and headquartered in Green Bay, Wisconsin, USA, the company offers 481 products in their lineup. They hold 5 verified certifications including Consumerlab, Labdoor, Non Gmo Project, Nsf Gmp. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Nature's Way has 3 historical regulatory incidents on record, which are factored into the trust score.

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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.