Life Extension: Pycnogenol
The Pycnogenol extract is rich in various types of polyphenols including oligomeric proanthocyanidins (OPCs) and organic acids (including ferulic acid, cinnamic acid and caffeic acid).
Plenty of scientific research
There is a long tradition of using Pycnogenol. It has been used as a dietary supplement for about 40 years and a lot of research has been done with this composition.