What it is
Grape Seed Extract standardized to 95% proanthocyanidins (OPCs). This supplement is used to support cardiovascular and circulatory system function. It is available in capsule form.
Supplement · Cardiovascular
Grape Seed (95% OPC)
500 mg · vegan · gluten-free · 90 caps
hypertensionperipheral-artery-diseasehigh cholesterol blood vesselheart
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How it works
Oligomeric proanthocyanidins (OPCs) in grape seed extract act as potent antioxidants, protecting endothelial cells from oxidative stress. They also promote nitric oxide production, leading to vasodilation and improved blood flow.
Who should take it
Adults looking to address high blood pressure, poor circulation, high cholesterol. Particularly relevant for people who prefer a targeted single ingredient and who have ruled out an underlying condition that needs medical care first.
Avoid / careful
Pregnant or nursing women without clinician oversight. People on prescription medication affecting the same pathway should consult a doctor before combining. Side effects are uncommon at recommended doses but mild GI upset can occur when starting.
When to take it
Morning
Noon
Evening
Night
How to take it
With food
Empty stomach
Before food
FAQs
Frequently asked
How long does it take to see results?
Measurable improvements in cardiovascular markers are typically observed within 4 to 12 weeks of consistent daily use.
Can I take this with my blood pressure medication?
Consult your doctor before combining grape seed extract with prescription antihypertensive medications, as it may potentiate their effects.
What are OPCs?
OPCs, or oligomeric proanthocyanidins, are potent antioxidant compounds found in grape seeds that contribute to the supplement's cardiovascular benefits.
Research
6 studies · 2010–2024
Evidence grade
ABCD
C · C · emerging-to-moderate human evidence for cardiovascular and circulatory health
From the blog
Editorial notes
SacredBod's longer take on Grape Seed (95% OPC) — context the structured blocks above don't capture.
About Grape Seed (95% OPC)
Grape Seed (95% OPC) is a cardiovascular supplement used to support cardiovascular and circulatory health. Grape-seed proanthocyanidins for vessels. It is available in capsule form and dosed for adults in India and internationally. As a western-tradition entry in the SacredBod catalog, it is positioned as a single-ingredient option that can be used on its own or layered into a broader protocol. Grape Seed (95% OPC) works through the mechanisms characteristic of its class — see the mechanism and research sections for detail. It primarily acts on the heart, blood vessels, and effects are dose-dependent, typically becoming measurable within 4-12 weeks for measurable cardiovascular markers. Consistency matters more than dose size for this category.
Evidence
Grape Seed (95% OPC) carries an evidence grade of C in the SacredBod catalog, reflecting emerging human evidence for cardiovascular and circulatory health. Grape-seed proanthocyanidins for vessels. Benefits are cumulative rather than immediate, typically becoming noticeable within 4-12 weeks for measurable cardiovascular markers, and individual response varies.
Dosing
A typical dose is 500 mg, taken with food, usually in the morning. Start at the lower end, assess tolerance, and stay consistent; more is not automatically better.
Cautions
Pregnant or nursing women without clinician oversight. People on prescription medication affecting the same pathway should consult a doctor before combining. Side effects are uncommon at recommended doses but mild GI upset can occur when starting.
Who it’s for
Adults looking to address high blood pressure, poor circulation, high cholesterol. Particularly relevant for people who prefer a targeted single ingredient and who have ruled out an underlying condition that needs medical care first.
As part of the Cardiovascular category, Grape Seed (95% OPC) can be used on its own or layered into a broader protocol — see the Goes with panel for evidence-aligned pairings.
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