Phenylalanine is first converted to tyrosine and then goes through the same process to the end product norepinephrine. The biochemical conversion to norepinephrine requires pyridoxine and vitamin C as coenzyme factors. Valine, leucine and isoleucine have been added to enhance neurotransmitter transportation across the blood brain barrier.
Free radicals are a major source of damage that can cause abnormal mental behavior.
Aids in transport of amino acids to liver and heart cells. Used for the myelination of nerve fibers, while stimulating RNA synthesis in brain tissues, and is involved in the biosynthesis of labile methyl groups in compounds such as choline. It is also a valuable brain neurotransmitter. Calcium is the entry stimulus for neurotransmitter release. ACh is required for release of vasopressin, which is purportedly associated with enhanced memory capacity.