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

Masquelier's Tru-OPCs Review

What We Researched
1 active ingredient analyzed · 7 inactive ingredients decoded · 8 brand certifications checked · Page generated: Sep 2026
100
Product Score Excellent
100
Brand Score Excellent

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

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.

Brand Trust Report
Nature's Way

Founded 1969 · Green Bay, Wisconsin, USA · 1013 products · naturesway.com

Certifications

8 certifications
Consumerlab Source available Primary evidence
Labdoor Source available Primary evidence
Non Gmo Project Source available Primary evidence
Nsf Gmp Source available Primary evidence
Usda Organic Source available Primary evidence
NSF Certified Supporting evidence unavailable
Gluten-Free Certified Supporting evidence unavailable
Vegan Action Certified Supporting evidence unavailable

Transparency

6 claims
Third Party Testing Claim — Verified Evidence available Evidence
Coa Availability — Claimed Evidence available Evidence
Testing Lab Disclosure — Verified Evidence available Evidence
In House Testing — Verified Evidence available Evidence
Contains Proprietary Blend — True Brand claim; evidence unavailable

Violation History

3 incidents
Fda Warning Violations of the Foreign Supplier Verification Program (FSVP) regulation.2022-12-20 Source available Primary source
Lawsuit Mislabeled and fraudulent herbal supplements.2015 Source available Primary source
Recall Nettle capsules2002-06-28 Source available Primary source
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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. All 7 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Nature's Way, holds a brand trust score of 100/100.

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?

GoodSupp reviewed the inactive-ingredient data available for Nature's Way Masquelier's Tru-OPCs. All 7 inactive ingredients — including capsule materials, fillers, and binders — are currently classified as safe in GoodSupp's ingredient reference data. This label analysis cannot determine whether the product is safe for a particular person, and source labels may change. 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 100/100 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 1013 products in their lineup. 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 — read our methodology. 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.