bioflavonoids are complex organic plant compounds found mostly in fruits and vegetables. They function as a cofactor or helper to the body's immune system to respond to inflammation, allergy and infection.oPCXtra is a super antioxidant drink mix made from a combination of six major sources of bioflavonoids. Four of the sources - Grape Seed Extract, Red Wine Extract, Pine Bark Extract and Green Tea Extract - supply a group of powerful antioxidant bioflavonoids called Oligomeric Proanthocyanidins (OPC).oPCXtra is totally bioavailable, water soluble and delivered in an isotonic solution, the way nature intended it to be. This product is delivered to the small intestines within five minutes, when taken as directed.oPC's are known to stabilize and protect collagen (a major protein in the body) from free radical damage and enzymatic digestion.bioflavonoids are complex organic plant compounds found mostly in fruits and vegetables. They function as a cofactor or helper to the body's immune system to respond to inflammation, allergy and infection.

oPC's derived commercially from grape seeds and the bark of pine trees, is a mixture of antioxidant molecules, variously called proanthocyanidins, procyanidins, proanthocyanidolic oligomers (PCO) or Oligomeric Procyanthocyanidins (OPC).oPC, as it's commonly called in scientific circles, is expert at treating vascular diseases because it actually increases the structural strength of weakened blood vessels. It also has other biological activity. OPC is one of the most potent antioxidants known -- fifty times as powerful as vitamin E, according to some tests. OPC's can help neutralize the underlying chemical cause (free radicals) that promotes most diseases.oPC's derived commercially from grape seeds and the bark of pine trees, is a mixture of antioxidant molecules, variously called proanthocyanidins, procyanidins, proanthocyanidolic oligomers (PCO) or Oligomeric Procyanthocyanidins (OPC).oPC, as it's commonly called in scientific circles, is expert at treating vascular diseases because it actually increases the structural strength of weakened blood vessels. It also has other biological activity. OPC is one of the most potent antioxidants known -- fifty times as powerful as vitamin E, according to some tests. OPC's can help neutralize the underlying chemical cause (free radicals) that promotes most diseases.oPC's derived commercially from grape seeds and the bark of pine trees, is a mixture of antioxidant molecules, variously called proanthocyanidins, procyanidins, proanthocyanidolic oligomers (PCO) or Oligomeric Procyanthocyanidins (OPC).