Hawthorn Berry extracts have many beneficial effects on the heart and blood vessels. It may help to improve coronary artery blood flow and also contractions of the heart. It has the effect of inhibiting angiotensin-converting enzyme (ACE) and reducing the production of angiotensin II a potent blood vessel constricting substance. This reduces the resistance in arteries and improves circulation to the extremities. Hawthorn also contains bioflavonoids which act as strong antioxidants. Hawthorn is used to support Atherosclerosis, Angina pectoris, Congestive heart failure and Hypertension.