So often patients will try to increase their serotonin levels by taking only 5-HTP which is converted to serotonin. Increasing serotonin levels in the brain often will help with stabilizing mood swings such as depression and anxiety and insomnia. The problem with this approach is that when only 5-HTP is used it depletes the neurotransmitter dopamine. The same problem arises when a person takes just L-dopa in an attempt to increase their dopamine levels. In this situation, serotonin levels would be depleted. I advise patients to use balanced amino acid and vitamin formulas when attempting to treat their depression, anxiety or insomnia. We have been using a well researched, patented formula by Neuro Research for the last 6 years with excellent results in treating the above conditions.