Like Dylan says "Hawthorne" is good.
Also, you should add Magnesium and Coleus Forskohlii Extract......................................... JP
P.S.
Magnesium ~ has been Reported to Reduce Blood Pressure in people with HBP.
Coleus Forskohlii Extract ~ causes the Lowering of Blood Pressure by Increasing cAMP Levels throughout the Cardiovascular System, which results in Relaxation of the Arteries.
Taurine ~ functions to dampen the Sympathetic Nervous System, thereby Relieving Arterial Spasm. When Blood Vessels Relax, the Blood Pressure will fall.
P.S.S.
That's why you take Taurine to Combat Muscle Spasms.