Cortisol (Free) Urine Test


A 24 hour urine test to measure levels of cortisol in the body, which may lead to diagnosis of Cushing syndrome and Addison disease.

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check_circle 1 test included
schedule 8 day turnaround info
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Cortisol (Free) Urine Test

About this test

Cortisol is a steroid hormone, produced by the adrenal gland. It is vital for survival as it's involved in various important functions such as immunity, regulating blood pressure, releasing insulin for blood sugar maintenance and responding to inflammation.

Cortisol has been termed 'the stress hormone' because it's also secreted in higher levels during the body's 'fight or flight' response to stress, and is responsible for several stress-related changes in the body.

This urine test establishes the levels of cortisol before leading to a diagnosis. This requires collecting all urine produced during a day. This sample will reflect the total amount of cortisol produced in a 24 hour period but will not show variations in cortisol.

Cushing syndrome is caused by too much cortisol, while Addison's disease is caused by damage to the adrenal, and is associated with too little cortisol.

Who is this test for?

This urine test is for anyone who requires help with the diagnosis of Cushing syndrome and Addison disease or who believe that their stressful lifestyle is damaging their health. 

How it works

Collect Sample

We send you an easy-to-use kit to collect your urine sample.

Post Sample

Post your sample to our lab in the prepaid envelope provided.

View Results

View results securely in your own personal dashboard.

Important Information

Our tests are not a substitute for seeing your doctor, especially if you are suffering symptoms. Our doctors will interpret your results based on the information you have provided, but will not diagnose, consult or provide any treatment. You will be advised to see your doctor for any necessary follow-up action.

Tests Included

Urine sample collection kit

We will send you your Cortisol (Free) Urine Test urine sample collection kit which contains everything you need to take your urine sample in the comfort of your own home.

Postage & packaging

Your Cortisol (Free) Urine Test includes 1st class postage and packaging for you to send your urine sample directly to our laboratory for analysis. If you live in an area where you cannot rely on the post or you simply want to ensure that your sample arrives at the laboratory the following day, you may wish to send your urine sample guaranteed next day delivery for extra reassurance.

Private laboratory analysis

Your urine sample will be analysed at one of our chosen laboratories. You can be assured of fast, accurate results from one of our accredited independent providers of clinical diagnostic tests.

Interpretation of results

Our medical team will comment on out-of-range urine results and give you follow-up advice where necessary. If you need it, a PDF copy of your Cortisol (Free) Urine Test results can be downloaded for your doctor.

Secure online account

Once you have placed your order you can visit where you can manage your account, track your orders and view your Cortisol (Free) Urine Test results.

Health and Lifestyle tracker

Stay motivated by filling in your online health and lifestyle questionnaire and seeing how improvements in your lifestyle can influence your results. Your medical and family history gives us vital information when interpreting your results.

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