Pine Bark Extract, also known as Pycnogenol (although it's a little different from the pycnogenol found in grape seeds), is a powerful antioxidant. Like other antioxidants, it helps to prevent the damage caused by free radicals. It also has the ability to extend the life of vitamin C in the blood stream. Pine Bark Extract has been found to strengthen the immune system. It aids in controlling blood pressure and improves kidney function. People who take the extract regularly have also been found to have lower blood sugar levels and also lost excess weight. It is said to strengthen the walls of the arteries and veins. Some studies show it effective in treating ADHD. It aids in cardiovascular problems and cancer fighting. Another recent study found that Pycnogenol increased endurance during exercise. It helps reduce swelling and inflammation. It is used by some to treat varicose veins and edema. Arthritis improves with regular use of pine bark extract. It helps maintain healthy skin in those who are regularly exposed to a lot of sun. It has been used to treat various allergies. It is often an ingredient in prostate formulas because it prevents inflammation. It is also useful in treating hemorrhoids, depression, lupus, macular degeneration and PMS. Studies in Taiwan found it useful in treating headaches and fatigue.   
    Pine bark extract come only from the French Maritime Pine tree found in Europe, so don't try to make your own from a pine tree in your back yard.  Pine bark extract has no known harmful side effects.