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Map your brain chemistry to understand mood, focus, and sleep
What Gabriel reads for
Serotonin (mood, sleep, gut motility)
Dopamine (motivation, reward, focus)
GABA (calm, anxiety regulation)

Cost
$200–$350
Turnaround
7–10 business days
Ordering path
ZRT Laboratory
Results flow
Upload + interpret in Gabriel
What this test reveals
Urine-based neurotransmitter testing measures the levels of key brain chemicals including serotonin, dopamine, GABA, glutamate, norepinephrine, and epinephrine — providing a biochemical snapshot of your neurological function.
While neurotransmitter testing has limitations (urinary levels are peripheral, not central), it provides valuable clinical correlation when combined with symptoms, genomics, and organic acid testing. For patients with anxiety, depression, insomnia, or ADHD, this data helps guide targeted amino acid and supplement protocols.
People usually reach for this kind of diagnostic when they want a clearer read on serotonin (mood, sleep, gut motility), dopamine (motivation, reward, focus), gaba (calm, anxiety regulation), especially when symptoms or prior testing still leave blind spots.
Once results are back, you can upload them into Gabriel to connect the findings to symptoms, protocols, and next-step testing instead of leaving them as a static report.
Commonly relevant for: Anxiety Depression, Insomnia Sleep Disorders, Adhd Focus.
Gabriel difference
Conventional psychiatry prescribes SSRIs and SNRIs without ever measuring neurotransmitter levels — it's like adjusting a thermostat blindfolded. While urinary neurotransmitter testing isn't perfect, it provides crucial data points that, combined with your symptoms and genomics (COMT, MAO variants), allow Gabriel to recommend targeted amino acid precursors and cofactors instead of — or alongside — pharmaceutical approaches.
Gabriel interprets results through a functional, root-cause lens: optimal ranges, pattern recognition across multiple diagnostics, and what the findings actually mean for action rather than just classification.
That means this test can feed directly into protocols, practitioner matching, food strategy, and follow-up testing instead of ending as a one-off PDF or lab portal result.
What to expect
01
Order
Order directly through ZRT Laboratory or ask Gabriel whether there is a better path first.
02
Complete
Collect a second-morning urine sample at home using the provided kit. Avoid bananas, chocolate, and certain supplements for 48 hours before collection (full instructions included).
03
Interpret
Upload the results to Gabriel for pattern recognition, protocol suggestions, and next-step guidance.
Frequently asked questions
It measures levels of brain chemicals like serotonin, dopamine, GABA, norepinephrine, epinephrine, and glutamate in urine. These chemicals regulate mood, sleep, focus, motivation, anxiety, and pain perception. Imbalances correlate with depression, anxiety, insomnia, ADHD, and chronic pain.
This is debated. Urine levels reflect peripheral (body) production, not necessarily brain levels. However, clinical research shows correlations between urinary neurotransmitter levels and symptoms, and practitioners report that targeted supplementation based on results consistently improves outcomes.
Anyone with mood disorders, anxiety, insomnia, ADHD symptoms, chronic fatigue, or who wants to optimize brain function. It's particularly valuable before starting psychiatric medications (to establish a baseline) or for people who want to try targeted amino acid therapy as an alternative.
Typically $200-350. First-morning urine collection at home, shipped to the lab. Results in 10-14 days. Insurance rarely covers it. Many practitioners consider it essential for anyone with mood-related complaints.
Tell Gabriel your symptoms, goals, and what you have already tried. You will get a more useful answer than a generic test catalog can give you.