About Nature Restore’s Organic Pine Bark Powder Extracted from the Pinus massoniana Standardized to 95% proanthocyanidins Contains naturally occurring oligomeric proanthocyanidins (OPCs) Beneficial antioxidant properties We provide USDA Certified Organic Pine Bark Powder which is highly extracted, standardized to 95% proanthocyanidins, a class of antioxidants that give the pine bark its color.

We isolate our pine bark powder from Pinus massoniana.