White pine bark extract comes from white pine trees (Pinus strobus or Pinus pinaster). It delivers proanthocyanidins, the same class of antioxidants found in French maritime pine bark (Pycnogenol).
People take it to encourage healthy blood flow and circulation. The extract also shows anti-inflammatory activity. Some use it for cognitive support or to reinforce blood vessels.
The supplement comes in capsules, tablets, powders, liquid extracts, and as a loose tea. Follow the label for dosing because amounts shift across products and forms.
This extract may slow blood clotting. Avoid pairing it with anticoagulant or antiplatelet drugs like warfarin or aspirin. It can lower blood pressure and blood sugar, so use caution with related medications. Skip it before surgery and speak with your doctor if you are pregnant or nursing.