Antioxidants: Pycnogenol is a pine bark extract with antioxidant properties for vascular health.* Vascular Integrity: Supports the health of blood vessels, overall vascular health, stabilization of collagenous membranes and vascular integrity. It also promotes vascular function by modulating nitric oxide levels.* Superoxide Radical Scavenger: In addition to facilitating vitamin C regeneration and preserving vitamin E, Pycnogenol is a hydroxyl and superoxide radical scavenger.* Pure Quality: Our supplements are made with only premium ingredients sourced from trusted suppliers and guided by our nutritional experts, then carefully manufactured and tested to verify their potency and purity. Pure Difference: What we leave out matters, too; Pure Encapsulations products are FREE FROM common allergens, artificial or unnecessary ingredients, and GMOs Pycnogenol originally denoted all proanthocyanidin extracts, regardless of source. However, it now refers specifically to maritime pine bark. The mixture of proanthocyanidins in pine bark supports vascular endothelial integrity by stabilizing collagenous membranes. It also promotes vascular function by modulating nitric oxide levels. In addition to facilitating vitamin C regeneration and preserving vitamin E, Pycnogenol is a hydroxyl and superoxide radical scavenger. Collectively, these actions promote the health of blood vessels.*