Testosterone and Cortisol Blood Test
Testosterone and Cortisol Blood Test
The Testosterone and Cortisol Blood Test is a specialist diagnostic tool designed to evaluate two of the body's most influential hormones: testosterone and cortisol. These hormones play key roles in regulating energy, stress, metabolism, mood, sexual function, and muscle maintenance. Understanding their levels provides valuable insight into the body's endocrine balance and can help identify underlying health conditions that may otherwise go undetected. This test is widely utilised by GPs, endocrinologists, and integrative medicine practitioners to investigate symptoms such as persistent fatigue, mood swings, low libido, and decreased physical performance. It is supported by research from leading institutions including Harvard Medical School, Oxford University, and clinical findings published in journals such as The Lancet Diabetes & Endocrinology and The Journal of Clinical Endocrinology & Metabolism. Numerous studies have shown that imbalances in testosterone and cortisol are associated with a wide range of health concerns—from adrenal dysfunction and stress-related disorders to age-related hormonal decline and metabolic issues.
What Does It Test For?
This blood test measures circulating levels of testosterone and cortisol, providing a snapshot of how the body manages both anabolic and catabolic processes. These two hormones operate in a delicate physiological balance—testosterone supports growth, repair, and vitality, while cortisol helps the body manage stress, inflammation, and metabolic demands. The test is commonly requested to assess for conditions such as low testosterone (hypogonadism), adrenal fatigue or insufficiency, chronic stress, or Cushing’s syndrome. It is also valuable for individuals undergoing hormone therapy, athletes monitoring recovery and training load, or anyone experiencing symptoms related to hormonal imbalance. By evaluating both hormones together, clinicians can better understand how the body responds to internal and external stressors and determine whether intervention is needed to restore hormonal equilibrium.
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Specifications
Specifications
How to take a test
How to take a test
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Biomarkers
Biomarkers
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How it Works
Order Your Test
Choose your test online and we’ll send you everything you need.
Take Your Sample
Use the simple finger-prick kit to collect your blood sample at home.
Post It Back
Return your sample in the prepaid envelope — no need to visit a clinic.
Get Reviewed Results
Your results are reviewed by a qualified lab technician and delivered securely online.
FAQ's
Do I need to visit a clinic to take the test?
Do I need to visit a clinic to take the test?
No — our tests are designed to be done entirely at home using a simple finger-prick kit. Just follow the instructions and post your sample back using the prepaid envelope.
How long do results take?
How long do results take?
Once your sample reaches our lab, results are usually available within 1–2 working days. You’ll be notified by email and can view everything securely online.
Are these tests verified and reliable?
Are these tests verified and reliable?
Yes. All our tests are processed in UKAS and ISO-accredited laboratories. Our clinical team includes NHS doctors, GPs, and registered nurses, ensuring medical accuracy and professional oversight.