Pine Bark Extract is a standardized botanical concentrate derived from the inner bark of Pinus pinaster (maritime pine), Pinus massoniana, or other suitable pine species. It is rich in oligomeric proanthocyanidins (OPC), a class of bioflavonoid compounds consisting of monomeric, dimeric, and oligomeric flavan-3-ols. These compounds are characterized by their high degree of polymerization and potent free radical scavenging activity.

The OPC content at ≥95% represents one of the highest purity grades available in the botanical extract market. Proanthocyanidins are distinguished from other flavonoids by their ability to bind and cross-link proteins, which underpins their unique bioactivities, including collagen stabilization, capillary integrity enhancement, and enzyme inhibition (e.g., elastase and hyaluronidase).

松樹皮エキス OPC 95%

Pine bark extract is one of the most thoroughly studied botanical ingredients, with decades of clinical and pharmacological research supporting its use in cardiovascular health, skin health, joint support, and cognitive function applications.