Pycnogenol is a unique combination of proanthocyanidins derived from the bark of the French maritime pine. Pycnogenol is a potent free radical neutralizer, supports a healthy, balanced immune system response, and promotes the production of collagen, hyaluronic acid, and nitric oxide. Clinical and non clinical studies have demonstrated that pycnogenol can help to maintain healthy eyes, skin, and joints, and can support normal vascular structure and function.