Cerasus CQ is the only tart cherry nutritional supplement with a combination Montmorency tart cherry powder, vitamin C, and quercetin. It is a safe, evidence-based supplement to support healthy uric acid levels and immune response.* Cerasus CQ contains CherryPURE, a Montmorency tart cherry powder made from the skins of whole tart cherries, used in several research studies. Tart cherries are a naturally rich source of vitamins, minerals, and flavonoids called anthocyanidins. Vitamin C and quercetin, both antioxidants, are also naturally present in cherries. The unique blend of these three ingredients helps promote a healthy immune system and optimal uric acid balance. Cerasus CQ is independently tested and certified by NSF International for content accuracy, purity, and freedom from contaminants. NSF International is a non-profit organization that has implemented the highest quality control standards in the supplements industry.