Isotonix OPC-3 is a crystal-like powder dietary supplement, that you mix with water. The ingredients in OPC-3 include red wine extracts, pine bark, bilberry, citrus and grape seed to provide the amount of antioxidants needed for optimal health. Healing capabilities of OPCs were first recognized more than 500 years ago, but it was not until 60 years ago that OPCs were identified as the antioxidant in natural organic compounds that can provide long term health benefits. OPC is an acronym for oligomeric proanthocyanidins, which are bioflavonoid antioxidants.isotonix.marketamerica.com/nasir