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Check your cortisol level with our home cortisol blood test kit. Simply order your kit and take a sample with the easy to use finger prick device. Send your sample back to us and it will be analysed in a UK lab before the detailed results are made available to you on a secure and insightful online dashboard.

Cortisol is a steroid hormone produced by the adrenal gland and released in response to stress. Our lab analysed finger prick blood test enables you to check your level of cortisol quickly and easily and therefore determine whether you may be under too much stress.

Your cortisol levels will rise if your body is placed under stress. If your body is put under prolonged stress cortisol may be unable to respond, which can lead to a condition known as adrenal burnout.

Levels naturally fluctuate throughout the day. This test measures your morning cortisol level, so should be taken before 10am.

Finger prick
Estimated turnaround
2 days
From receipt of sample

Why check your Cortisol?

  • To check your adrenal gland function
  • To check whether your body might be under too much stress
  • To check whether you may be over training

Benefits of cortisol testing

Our cortisol check is a finger prick blood test you can take at home. You then simply send it back to us and you’ll have your cortisol level result on an easy-to-understand digital dashboard within days.

By checking your levels, you can begin to understand whether your body might be suffering from too much stress. This, in turn, can help you to make the lifestyle changes to lower your cortisol levels and therefore minimise any other health risks associated with physical or emotional stress.

Similarly, low levels of cortisol might indicate a problem with adrenal gland function, which you can then investigate further with the help of health professionals.

Biomarkers included in this package


Cortisol (9am)

How it works

Collect sample

We will send you a finger prick kit to use at home

Post sample

Pop your sample in the post to us using a pre-paid envelope

Online results

View your results on your secure personal health dashboard

What our customers say

I enlisted the help of Forth to help me get to the bottom of my current health concerns. The test was really easy to and my results were available within day. Using Forth has helped me take the action needed to get my hormones back on track.

Holly Rush, 39

As a working mum, I often find myself training ‘tired’ as the demands of day-to-day life take their toll.  Forth has enabled me to gain a valuable insight into what is happening ‘under the surface’, so I  can adapt my training and lifestyle.

Kate Allan

Forth really helped me understand issues that I was having, which in the end turned out to be problems with iron absorption. Without their test I would never have known this. I now have the knowledge I need to improve.

Sean Conway

Taking the test is simple just make sure you follow all the instructions so you follow the correct procedures. The customer service is second to none and the results are easy to understand and follow.

Matthew Bottrill

I was keen to use Forth’s service to help monitor my haematological markers in particular since I've had problems in the past and by the time they are picked up by the GP I'm normally feeling unwell.  The test was quick and easy to do and results were back very quickly. The results are also incredibly accurate, being almost identical to those from tests done by my GP the same day.

Alice Lethbridge

I ran my first marathon in 2014 which left me feeling exhausted and constantly unwell. What I didn’t know then was that my iron and vitamin D levels were incredibly low.  By using Forth to test key biomarkers has put me in control of the areas I need to improve.

Jude Peck, 42

I'd put off getting regular blood tests before because of the long-winded process of a GP visit. Forth has changed all that. The process is very quick and very easy, with thorough, well-explained results delivered to your inbox within days.

Alice Hector

As a former Olympic cyclist I always wanted to look after my health. This has never changed to this day but become a lot easier via Forth, it’s the only way to really understand your own body. 

Brian Smith

I suffer from a hereditary condition which causes my body to store too much iron.  My biggest issue before using Forth was getting an appointment with my GP.  Now using Forth I can track my iron quickly and easily and take action before levels start to affect my health

Mark Threfall, 29

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