Masquelier's Tru-OPCs

product on market Tablet or Pill Nature's Way 🟢 Safety: 100/100
Brand: Nature's Way
🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 50% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Label Data

2 Tablet(s) Serving Size
45 Servings
Botanical Product Type
50% Evidence Coverage

Supplement Facts — Evidence Check

Total Carbohydrates
1 Gram(s) (1% DV)
150 mg
📊 Market median: 100.0mg (284 products) 📚 10 studies (Tier A: 0, B: 4)
This product: 150mg

Other Ingredients

Cellulose Maltodextrin Sodium Croscarmellose Stearic Acid Hypromellose Silica Glycerin

Label Claims — Verification

❓ All Other
❓ Structure/Function
All Other (99% of products) Structure/Function (85% of products) Nutrient (9% of products)

Target Groups

Vegan Vegetarian Adult (18 - 50 Years) Gluten Free Dairy Free

Product Information

📋 Directions for Use

Recommendation: Take 2 tablets one to two times daily.

⚠️ Warnings & Precautions

Caution: If you are pregnant, nursing, have a blood clotting disorder, or taking any medications, consult a healthcare professional before use.

Keep out of reach of children.

Safety sealed with printed inner seal. Do not use if seal is broken or missing.

🧪 Formulation Notes

Skin and vascular health

Tru-OPCs contain the combination of monomers and oligomers isolated by Dr. Jack Masquelier. Our Tru-OPCs are carefully tested and produced to superior quality standards.

Premium extract

Grape seed extract Masquelier's Tru-OPCs 150 mg per serving

Gluten free. No salt, yeast-derived ingredients, wheat, soy, dairy products, or artificial colors, flavors, or preservatives.

Vegan

Additional Information

Nature’s Way Since 1969

Bottles made from 97% post-consumer recycled plastic

Quality Global Sourcing Bottled & Tested In the USA

Product Details

UPC / SKU 0 33674 49131 7
DSLD Entry Date 2020-02-26
Product Type Botanical
Form Tablet or Pill
Brand Nature's Way
DSLD ID 213482
Data Updated 2026-04-11

Research Evidence

14 Research Sources
50 Avg Quality Score
9 Rct
2 Meta Analysis
2 Clinical Trial
1 Systematic Review
B Low Dose Monacolin K Combined with Coenzyme Q10, Grape Seed, and Olive Leaf Extracts Lowers LDL Cholesterol in Patients with Mild Dyslipidemia: A Multicenter, Randomized Controlled Trial
Rct Nutrients 2023
PubMed DOI
B Efficacy of Bilberry and Grape Seed Extract Supplement Interventions to Improve Glucose and Cholesterol Metabolism and Blood Pressure in Different Populations-A Systematic Review of the Literature
Systematic Review Nutrients 2021
PubMed DOI
B The effect of grape seed extract on cardiovascular risk markers: a meta-analysis of randomized controlled trials
Meta Analysis Journal of the American Dietetic Association 2011
PubMed DOI
B The impact of grape seed extract treatment on blood pressure changes: A meta-analysis of 16 randomized controlled trials
Meta Analysis Medicine 2016
PubMed DOI
B Grape Seed Extract Positively Modulates Blood Pressure and Perceived Stress: A Randomized, Double-Blind, Placebo-Controlled Study in Healthy Volunteers
Rct Nutrients 2021
PubMed DOI
C Effects of grape seed extract beverage on blood pressure and metabolic indices in individuals with pre-hypertension: a randomised, double-blinded, two-arm, parallel, placebo-controlled trial
Rct The British journal of nutrition 2016
PubMed DOI
C Effect of grape seed extract on blood pressure in subjects with the metabolic syndrome
Rct Metabolism: clinical and experimental 2009
PubMed DOI
C Grape seed extract supplementation along with a restricted-calorie diet improves cardiovascular risk factors in obese or overweight adult individuals: A randomized, placebo-controlled trial
Rct Phytotherapy research : PTR 2021
PubMed DOI
C The effect of polyphenol-rich chardonnay seed supplements on peripheral endothelial function.
Rct European journal of nutrition
PubMed DOI
C The effects of grape seed extract supplementation on cardiovascular risk factors, liver enzymes and hepatic steatosis in patients with non-alcoholic fatty liver disease: a randomised, double-blind, placebo-controlled study.
Rct BMC complementary medicine and therapies
PubMed DOI
View all evidence for Grape Seed →

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