What do they do?

Proanthocyanidins (Grape Seed) also called “OPCs” for oligomeric procyanidins or “PCOs” for procyanidolic oligomers—are a class of nutrients belonging to the flavonoid family.

Proanthocyanidins have antioxidant activity and they play a role in the stabilization of collagen and maintenance of elastin—two critical proteins in connective tissue that support organs, joints, blood vessels, and muscle. Possibly because of their effects on blood vessels, proanthocyanidins have been reported in double-blind research to reduce the duration of edema after face-lift surgery from 15.8 to 11.4 days. In preliminary research, proanthocyanidins were reported to have anti-mutagenic activity (i.e., to prevent chromosomal mutations). Continue Reading »

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