SAFE
Grape Seed Proanthocyanidins
Vitis vinifera seed OPC extract
Likely Safe
V1 Verified
Cardiovascular Herbs
PubMed Studies
2,800
About
Grape seed OPCs for vascular integrity, antioxidant protection, and capillary strengthening. High ORAC and clinical evidence.
How it works (mechanism of action)
Modulates cardiovascular function via eNOS activation for vasodilation, inhibition of platelet aggregation, and venotonic effects strengthening venous wall integrity. Antioxidant effects protect LDL from oxidative modification reducing atherosclerosis progression.
👥 Safety by Population
🚫 Contraindications & Warnings
Very safe. Anticoagulant interaction. Allergy to grape products: caution.
🏷️ Other Names
Vitis vinifera seed OPC extract