Taking a serotonin and dopamine support supplement is better than taking a supplement to support only dopamine or only serotonin. This is because Dopamine (motivation and reward) and Serotonin (learning and mood) work in a delicate balance. Unlike leading alternatives, Dr Maxwell’s formula contains precursors of both dopamine and serotonin so it helps maintain normal neurotransmitter levels* Dr Maxwell’s formula contains precursors of both dopamine and serotonin, unlike leading competitors. Our formula contains concentrated Mucuna Pruriens seed extract standardized to 60% (vs. 15 - 20% in leading competitors), a better precursor of dopamine than L-tyrosine and L-phenylalanine. It also contains 5-HTP, a better precursor of serotonin than Tryptophan* Mood support and relaxation: Dr Maxwell’s formula provides Magnesium and Vitamin D3 to support overall well-being, mood and relaxation* Focus and brain support: our formula contains Ashwagandha, L-theanine and Taurine to support daily cognitive function and mental tasks* Superior formula and value. Dr Maxwell’s 4-in-1 formula provides 1) dopamine precursors, 2) serotonin precursors, 3) nutrients for mood support & relaxation and 4) focus & brain support. If bought separately, these would cost between 60 and 110$* Highest Quality, made in the USA from non-GMO, pure ingredients in a GMP and FDA-registered facility. Free from gluten, eggs, wheat, peanuts, sweeteners, shellfish and sugar* Please check the DO NOT USE section on the product label, which can be found among the product pictures*