Grape Seed Extract is derived from the ground up seeds & skins of red grapes. It is known for its anti-oxidant properties that may help protect against cancer, slow the aging process, improve circulation & reduce inflammation.* Researched Dietary Supplement. OPC s from Grape Seed. Contains Oligomeric Procyanidins. Contains No Chemical Solvents Extract 120:1. Vegetarian & Kosher Capsules Olympian Labs Grape Seed Extract contains 95% Oligomeric Proanthocyanidin B 2-3-0gallate, an Oligomeric Procyanidin which is more potent antioxidant than those from pine bark. Pycogenols is a generic chemical term used to distinguish the polyphenolic class of bioflavonoids which contain Flavin-3-ols from the.