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View compareOligomeric Proanthocyanidins (OPCs) are the clinically proven health promoting nutrients in grape seed extract.* Other grape seed extracts may contain tannins, which are large, poorly absorbed molecules counted as OPCs. Clinical OPC® is tannin-free and supports healthy:
• Heart and Arteries
• Blood Sugar†
• Cellular Protection and Immune Function^
• Weight Management††
• Focus and Concentration
• Blood Pressure and Cholesterol Balance*†