Support Blood Pressure Already Within The Healthy Range! Hawthorn leaves, flowers and berries have been used for generations by herbalists as a cardiovascular tonic. Hawthorn promotes cardiovascular health by supporting cardiac muscle tone and vascular integrity. Hawthorn Extract also exhibits powerful free radical scavenging activity. NOW Hawthorn Extract is standardized to 1.8% Vitexin that, along with other natural components, has been found to support normal blood flow and may help to maintain blood pressure already within the healthy range. Note: Manufacturers continually change product specifications. While we try our best to keep product descriptions up to date, they do not necessarily reflect the latest information available from the manufacturer. We are not responsible for incorrect or outdated product descriptions and/or images.