Neurotransmitter testing is a lab test that is sent off to a company where your neurotransmitters, such as serotonin and a number of others are measured. This helps determine what needs to be supported, if any of the neurotransmitters are low or high. From this point the laboratory gives recommendations so that treatment can occur based on what type of levels the neurotransmitters may or may not need to be at. This process helps relieve or repair symptoms of anxiety, depression, focusing issues, over excitability, lack of energy or fatigue.