Herbal supplement. Cardiovascular system support. Formulated by Michael Tierra, L.Ac., O.M.D. Hawthorn is a flavonoid-rich herb renowned for its ability to support the normal activity of the heart. Planetary Herbals Hawthorn Heart combines this precious botanical and tonifiers from Europe and North America with valued Asian botanicals to support the cardiovascular system. (These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.)