Nature's Lab CherryPURE Montmorency Tart Cherry 500 mg is made from the deep red skins of 100% Montmorency tart cherries. Montmorency cherries are considered a rich source of powerful antioxidants and flavonoids and may provide a variety of health benefits.* Nature's Lab CherryPURE Montmorency Tart Cherry leverages the health benefits thought to be inherent in cherries, which are known to contain significant levels of antioxidant flavonoids known as anthocyanins.* Nature's Lab CherryPURE Montmorency Tart Cherry includes a more concentrated amount of phytonutrients, including polyphenols, flavanols, and other natural compounds than blueberries, pomegranates and apples.*