ProveIt Supplements

Independent, evidence-based supplement analysis.

✓ Not Sponsored

✓ No Paid Reviews

✓ Science-Based

Company

  • About Us
  • Our Methodology
  • Contact
  • Blog
  • Authors

Legal

  • Privacy Policy
  • Terms of Service
  • Medical Disclaimer
  • Affiliate Disclosure

Resources

  • All Categories
  • Ingredient Database
  • Browse Supplements
  • FAQ

© 2025 ProveIt Supplements. All rights reserved.

Medical Disclaimer: The information provided is for educational purposes only and is not intended as medical advice. Always consult with a qualified healthcare professional before starting any supplement regimen.

Prove It
Browse SupplementsBlogAuthorsAboutMethodologyFAQ
Get Your Personalized Supplement StackSupplement Stack Quiz
Menu
HomeBrowse SupplementsBlogAuthorsAboutMethodologyFAQ
OPC Synergy

OPC Synergy

SP Standard Process

#Other
65
Safety75
Efficacy55
Transparency80
Based on Examine, Wikipedia, and 23 other sources

Overview

The effectiveness of OPC Synergy is significantly hampered by the use of a proprietary blend, which prevents knowing the exact dosages of key active ingredients. While ingredients like Grape Seed Extract, Green Tea Extract, Bilberry Extract, and Red Wine Extract have known benefits, their inclusion within a 410mg proprietary blend makes it highly probable that many, if not all, are underdosed for their clinically effective ranges.

The Good

Contains well-researched botanical extracts with known antioxidant benefits (e.g., Grape Seed, Green Tea, Bilberry, Red Wine).

Formulated with traditional 'whole food' ingredients, which some consumers prefer.

Generally considered to have a good safety profile for healthy individuals.

The Bad

Use of a proprietary blend obscures the dosages of individual active ingredients.

High likelihood that primary beneficial ingredients are significantly underdosed, diminishing product efficacy.

Inclusion of common food powders (buckwheat, carrot) in the blend further dilutes the concentration of potent extracts.

Is it for you?

Best For: Individuals seeking antioxidant support, those concerned with cardiovascular health, people looking to support healthy circulation

Skip If: You are pregnant, nursing, taking blood-thinning medication, or have a known allergy to any ingredients.

Ingredients Analysis

Proprietary Blend

410 mg

Organic Buckwheat Juice Powder

Organic Buckwheat

Green Tea Powder

Organic Carrot

Grape Seed Extract

Bilberry Extract

Green Tea Extract

Red Wine Extract

How to Use

Take the recommended dosage, typically 1-2 tablets, with meals or as directed by a healthcare professional.

Frequency:

Daily

Best Time:

Morning or Evening

When:

With food

Who Should Use This

Best For:

Individuals seeking antioxidant support, those concerned with cardiovascular health, people looking to support healthy circulation

Similar Products

Vetri-Science® Laboratories Healthymouth™ Natural Zeolites for Dogs & Cats Dental Health Supplement by Vetriscience®

Vetri-Science® Laboratories Healthymouth™ Natural Zeolites for Dogs & Cats Dental Health Supplement

Vetriscience®

COLLAGEN PRO Pasture Raised Peptides UNFLAVORED DIETARY SUPPLEMENT by GNARLY®

COLLAGEN PRO Pasture Raised Peptides UNFLAVORED DIETARY SUPPLEMENT

GNARLY®

LOWAT Proprietary Blend by Swanson Best Weight-Control Formulas

LOWAT Proprietary Blend

Swanson Best Weight-Control Formulas

Muscle memory Creatine Powder supplement by Ora®

Muscle memory Creatine Powder supplement

Ora®

Amazing Formulas MSM (Methylsulfonylmethane) Supplement by Amazing Nutrition

Amazing Formulas MSM (Methylsulfonylmethane) Supplement

Amazing Nutrition

Fiber GDX Dietary Supplement Fiber / Orange Flavor by THE PAUSENUTRITION®

Fiber GDX Dietary Supplement Fiber / Orange Flavor

THE PAUSENUTRITION®

Recommended Articles

Top Ingredients for Healthy Weight Management

Top Ingredients for Healthy Weight Management

Dietary fiber, protein, omega-3 fatty acids, and water are crucial for managing a healthy weight.

L-Theanine Dosage for Focus: Avoid Drowsiness

L-Theanine Dosage for Focus: Avoid Drowsiness

200-400mg daily of L-theanine enhances focus without causing drowsiness, with benefits amplified when combined with caffeine.

Bone Health Supplements for Plant-Based Postmenopausal Women

Bone Health Supplements for Plant-Based Postmenopausal Women

Optimal bone health for postmenopausal individuals on plant-based diets involves calcium, vitamin D, magnesium, and vitamin K2 supplementation.

Maintain Muscle Mass with Age: Key Ingredients

Maintain Muscle Mass with Age: Key Ingredients

Adequate protein, Vitamin D, Omega-3, and the Mediterranean diet are vital for maintaining muscle mass in the elderly.