For optimum cardiovascular health maintenance, try Pyridoxal-5-Phosphate Caps from Life Extension. Also referred to as P-5-P, this is the metabolically active form of vitamin B-6 that goes to work immediately. In order for vitamin B-6 to be utilized by the body, it must be converted by the liver into its active coenzyme form. P-5-P lets your body side-step this conversion process for more rapid and efficient assimilation.