Medically reviewed by Allison Herries, RDN Medically reviewed by Allison Herries, RDN Pycnogenol is a pine bark extract containing plant-based chemicals that may ease osteoarthritis pain ...

Pycnogenol is the US trademarked name for an antioxidant made from Mediterranean tree bark. The specific tree from which the bark is extracted is called a maritime pine. It is found primarily in ...