Balance D is formulated to help support the important neurotransmitter dopamine. Low dopamine is a very common finding in our neurotransmitter testing. NeuroScience uses an extract of the high-potency fava bean to add the dopamine precursor L-dopa. Unlike most companies, NeuroScience further refines the fava bean extract to make a standardized concentration of L-dopa so you always get the same amount per capsule. NS also adds N-acetyltyrosine because of its potent support of dopamine, norepinephrine and epinephrine which are the primary components of the catecholamine system.