Hawthorn Extract is a natural cardiovascular tonic that has been used for generations. Nature?s Way Hawthorn is standardised to 1.8-2.2% of the bioflavonoid Vitexin, the effective element that supports cardiovascular health by ensuring efficient delivery of blood and nutrients to the cardiac muscle. This herbal product also helps protect the arteries from cholesterol build-up. visit us http://www.tasmanhealth.co.nz/natures-way-hawthorn / for more details!!