The plant is a 30 cm high climbing vine with heavily-branched roots, a woody trunk, orbicular leaves, and globular fruit with pear-shaped seeds. It is indigenous to southern Europe and western Asia ; however, it is now cultivated in temperate regions around the world. The medicinal parts of the plant include the leaves, fruit, and juice.
Chemical definition:
Proanthocyanidins
Specification:
Assay By UV) OPC 95%
Appearance:
Brown-Red fine powder with Characteristic odor.