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Serotonin LIS Code: Serotonin

Book a serotonin blood test to assess mood, sleep, and mental wellbeing. Fast, accurate private testing in Slough, Reading, and across the UK with quick results.

→ 15 days → UKAS-accredited lab → No GP referral needed
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Test Price
£122
Results in
15 days
from sample receipt at lab
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Sample
Blood
£122
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⏱ Results in 15 days · LIS: Serotonin
ℹ️ TAT begins when your sample is received at our lab.
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Phlebotomy Fee: £25
A one-off £25 phlebotomy fee applies per visit — this covers your blood draw regardless of how many tests you book in the same appointment.

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About this test

Overview of the Serotonin Test

The serotonin test measures the concentration of serotonin in the body, a neurotransmitter that plays a critical role in regulating mood, emotions, and several physiological functions. Often referred to as the "feel-good" chemical, serotonin contributes to a sense of well-being and emotional balance. This test offers important insights into mental and physical health by identifying potential serotonin imbalances.

Importance of Serotonin

Serotonin is essential for maintaining mood stability, healthy sleep patterns, appetite regulation, and proper digestive function. Adequate levels support emotional well-being, mental focus, and overall health. An imbalance in serotonin levels may be linked to conditions such as depression, anxiety, and sleep disturbances. It also affects gastrointestinal activity and pain perception, making it significant for both mental and physical health.

When to Consider Testing

This test may be recommended for individuals experiencing:

Ongoing symptoms of depression or anxiety

Unexplained mood changes or emotional instability

Sleep issues, including insomnia or disrupted sleep patterns

Potential serotonin syndrome caused by medication interactions

Treatment monitoring for serotonin-related conditions like major depressive disorder or bipolar disorder

Gastrointestinal symptoms potentially related to serotonin levels

Preparation Guidelines

For accurate results, fasting may be advised before a serum serotonin test. Patients should inform their healthcare provider about any medications or supplements they are currently taking, particularly drugs that influence serotonin levels such as SSRIs. Proper preparation helps ensure precise and reliable test outcomes.

Our Professional Services Our diagnostic testing is carried out by Medical Diagnosis, a UKAS ISO 15189 accredited laboratory, ensuring all results meet the highest UK standards of quality and accuracy. Clinical consultations and treatments, including Testosterone Replacement Therapy (TRT) and Weight Management programmes, are delivered through Medical Diagnosis Victoria, which is registered with the Care Quality Commission (CQC). All clinical services are provided by GMC-registered doctors with extensive experience, following thorough medical assessment in line with UK regulatory standards.
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