Fruit

Grapeseed 95% Proanthocyanidins

Provisional Strong Scorebotanical

Hermetica Superfood Encyclopedia

Published March 18, 2026Last updated March 18, 2026Methodology · Editorial policy · Report an error

Evidence review status: unreviewed

Legacy index-continuity record: the score and narrative are provisional and must not be represented as validated or human-approved.

Review flags: AWAITING_SEMANTIC_VALIDATION

Provisional Summary

Grapeseed extract 95% proanthocyanidins contains concentrated oligomeric proanthocyanidin complexes (OPCs) that provide potent antioxidant activity. These compounds support cardiovascular health, skin integrity, and cellular protection through free radical scavenging and collagen stabilization.

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Screened PMID Records

Reported Benefits

Pending

Synergy Review

At a Glance

CategoryFruit

GroupFruit

Public Score StatusProvisional Strong

Primary Keywordgrapeseed extract benefits

Grapeseed 95% Proanthocyanidins — botanical close-up

Reported Benefits (Provisional)

Rich in antioxidants, grapeseed extract protects cells from oxidative damage, which can slow aging and reduce disease risk. - Supports cardiovascular health by improving blood flow and reducing blood pressure, enhancing heart function. - Enhances skin health by promoting collagen synthesis, leading to firmer, more youthful skin. - May improve cognitive function by increasing blood flow to the brain, potentially reducing the risk of cognitive decline. - Supports weight management by inhibiting fat absorption and promoting fat metabolism. - Contains anti-inflammatory properties that can help reduce symptoms of chronic inflammatory diseases. - Aids in reducing edema and swelling, particularly in post-surgical patients, by improving circulation.

Origin & History

Grapeseed 95% Proanthocyanidins — origin

Natural habitat

Grapeseed extract is derived from the seeds of grapes, primarily sourced from European vineyards. It is standardized to 95% proanthocyanidins, a powerful antioxidant.

“Grapeseed extract has been used in traditional European medicine for its health benefits, particularly in promoting heart and skin health.”Traditional Medicine

Research Narrative (Provisional)

Studies indicate that grapeseed extract's high antioxidant content may support cardiovascular health and improve skin elasticity. More research is needed to confirm these benefits.

Preparation & Dosage

Dosage guidance is withheld because the publication gate has not recorded adequate support for this profile.

Nutritional Profile

- High in proanthocyanidins, a potent antioxidant. - Contains vitamin E and flavonoids. - Low in calories and free from fat.

Reported Mechanism (Provisional)

Mechanism of Action

Proanthocyanidins, particularly procyanidin B1 and B2, neutralize reactive oxygen species and inhibit lipid peroxidation through electron donation. These compounds stabilize collagen and elastin by cross-linking amino acids, while improving endothelial function via increased nitric oxide bioavailability. OPCs also modulate inflammatory pathways by inhibiting nuclear factor-kappa B (NF-κB) activation.

Clinical Narrative (Provisional)

Randomized controlled trials with 40-150 participants show grapeseed extract (150-300mg daily) significantly reduces systolic blood pressure by 6-15 mmHg over 6-16 weeks. Smaller studies (20-60 subjects) demonstrate improved skin elasticity and reduced oxidative stress markers after 8-12 weeks of supplementation. However, most cardiovascular studies are short-term with modest sample sizes, and long-term safety data remains limited.

Also Known As

Vitis vinifera seed extractGSEGrape seed proanthocyanidin extractGSPEOligomeric proanthocyanidinsOPCsPycnogenol-like compounds

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These statements have not been evaluated by the Food and Drug Administration. This content is for informational purposes only and is not intended to diagnose, treat, cure, or prevent any disease.

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