Pycnogenol is a plant extract derived from French maritime pine bark. It is rich in polyphenols and has been studied for its effects on cardiovascular function, inflammation, and antioxidant activity.
Pycnogenol and Cardiovascular Function
Research published in Hypertension Research (October 2007; Vol. 30:775–780) examined how Pycnogenol affects the body’s production of nitric oxide, a signaling molecule that helps blood vessels relax. Sixteen healthy young men were assigned to receive either a placebo or 180 mg of Pycnogenol daily for two weeks.
To evaluate nitric oxide–related vascular responses, researchers administered a compound that temporarily inhibits L-arginine, the amino acid required for nitric oxide production. This typically causes blood vessels to constrict.
After two weeks:
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The group taking Pycnogenol demonstrated 42% greater arterial relaxation compared with the placebo group.
This suggests that Pycnogenol may help support endothelial function—an important factor in cardiovascular health.
Pycnogenol and Arthritis
Pycnogenol is also known for its antioxidant properties. A small double-blind, placebo-controlled study published in Nutrition Research (November 2007; Vol. 27, Issue 11:692–697) evaluated its effects on individuals with osteoarthritis. The study included 37 patients, each receiving either 150 mg of Pycnogenol or a placebo daily.
After 60 and 90 days, the Pycnogenol group showed:
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52% improvement in physical function (WOMAC Index)
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43% reduction in pain
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35% reduction in stiffness
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A notable decrease in the use of pain medications
These findings indicate that Pycnogenol may support joint comfort and mobility while helping reduce reliance on pain-relieving drugs.
