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Optimized Vitamin C for Enhanced Antioxidant ProtectionDietary SupplementPureWay-C®Source Naturals Metabolic C™ is activated vitamin C utilizing advanced PureWay-C™. Initial in-vitro studies suggest that naturally derived vegetable lipid metabolites may improve the uptake delivery and retention of vitamin C. The strong antioxidant activity of Metabolic C is upgraded support for your immune system circulatory system liver joints and skin.