• Latin Name: Vitis Vinifera
  • CAS No.: ?84929-27-1
  • Active Ingredient: OPC (Olygemetric Proanthocyanidins)
  • Specification: 95%
  • Test Method: HPLC/UV
  • Appearance: Fine Brown powder



Grape is a berry in genus Vitis. Cultivated as early as 8000 years ago in the middle east, grape is one of the most popular fruit with endless ways to consume. Researches showed the shades of grape fruits is determined by anthocyanins and other pigment chemicals which responsible of the color of purple grape. Among many flavonoids in grape Olygemeric Proanthocyanidinss (OPCs) appeared to be most valuable composition. Studies showed beyond their antioxidant powers, OPCs are thought to improve blood circulation and help strengthen blood vessels. Their properties benefit people with heart disease.


Olygemeric Proanthocyaniddinss, more commonly known as OPCs, are phenolic compounds that found in a variety of plants. OPC are oligomers of catechin and epicatechin. This polyphenol is belong to the flavonoid family and offers multiple beneficial activities including improve blood circulation, strengthen blood vessels, lower hear rate. In plant extract industry, the main source of OPC is cranberries, grape seeds and red wine.