Provides strong serotonin support and includes cofactors for improved synthesis to help improve low mood and irritability. Serene by NeuroScience™ is an amino acid formula containing 5-HTP to support serotonergic neurotransmission. As a calming neurotransmitter, optimal serotonin levels are important for healthy sleep and a positive mood. 5-HTP is the direct precursor to serotonin and results in greater serotonin conversion as compared to L-tryptophan. Serotonin, in turn, is the precursor to melatonin and, therefore, helps promote sleep. In addition to 5-HTP, Serene contains vitamin and mineral cofactors essential for serotonin synthesis. Recommended for patients with low serotonin levels.