Source naturals OPC-85 is a potent natural antioxidant derived from the bark of the European coastal pine pinus maritime. It is the original product of Dr. Jacques masquelier the researcher who first isolated and identified oligomeric proanthocyanidins or Opcs. Opcs are powerful plant compounds which have been shown to have exceptional free- radical scavenging activity and which help preserve the integrity of body tissues. They belong to a larger class of compounds called bioflavanols a group of substances built out of the same molecule- the flavan-3-ol molecule. Source naturals opc-85 is guaranteed contain 85% bioflavanols for maximum benefit.Other products from HerbsPro