Pycnogenol is now an extremely well known supplement and available across most of the world it is an extract from the bark of the maritime pine and is rich in a type of compound called proanthocyanidins a sub group of the flavonoid family of plant compounds our prehistoric diet would have provided significant quantities of these pcos as they are present in dark skinned fruit berries and seeds extensive research has identified that pcos are extremely active in the body and the manufactur