WiBo Health

Grape Seed Extract (95% OPC)

Circulation & antioxidants

Function & benefits

An extract rich in proanthocyanidins (OPCs), plant antioxidants that help protect collagen fibres in the skin and blood vessel walls; studies suggest it supports veins and circulation, eases heavy, swollen legs after long sitting, and supports a radiant, even skin tone.

Dosage & how to use

Recommended dose100–300 mg daily
Best time to takeAfter breakfast or lunch
FrequencyOnce daily

Best forms to choose

Grape seed extract standardised to 95% proanthocyanidins (OPCs), in capsules or tablets.

Important warnings

Stop two weeks before surgery because of its mild blood-thinning effect

Avoid during pregnancy and breastfeeding, as safety data are insufficient

Drug interactions

Use with care alongside blood thinners and antiplatelet drugs (warfarin, aspirin, clopidogrel), as the risk of bleeding may increase.

View in the supplements guide

Related supplements

Scientific references

  1. Sano A et al. J Sci Food Agric 2013 — PMID: 22752876
  2. Yamakoshi J et al. Phytother Res 2004 — PMID: 15597304
📚 Published sources and research: European Food Safety Authority (EFSA) • National Institutes of Health (NIH - ODS) • PubMed / Cochrane databases

Content last updated: 17 October 2026 · Based on published sources and research (EFSA / NIH / PubMed)

⚖️ Medical disclaimer: The information and data provided here are for health education and nutritional guidance only. They are not a medical diagnosis and never replace a direct consultation with your doctor or pharmacist. Always consult your doctor before starting any supplement, especially during pregnancy or breastfeeding or when taking long-term medication.