Build your own
Build your own test that's specific to your health needs, choosing from our wide range of Biomarkers.
Choose from 30+ markers
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Hormones 
Fertility 
General Health 
Cancer test 
Nutrition 
Mental health 
Sports Build your own
Build your own test that's specific to your health needs, choosing from our wide range of Biomarkers.
Choose from 30+ markers
Blood sample collection options
You can choose your preferred collection method when you checkout
Finger prick kit (FREE)
You can do this test at home without the need for a doctor. We'll send you everything you need to collect your sample and post it back to us. And it's all included in the cost. We've put together a video that covers the process, making it easy to check and track your health from home.
Home nurse appointment (+£60)
We'll arrange for a medical professional to visit your home and collect your sample. This is great if you're unsure on how it all works or have trouble collecting a sample. No need to book a doctor's appointment or visit a clinic, we'll send you everything you need to collect a sample and post it back to our labs.
Visit a partner clinic (+£45)
Once you've ordered your test, look out for an email from our phlebotomy partners containing information and a link to book your appointment. We'll send you everything the clinic will need to complete the sample and post it back to our labs.
Organise a nurse myself (FREE)
If none of the above options work for you, you can arrange your own medical professional to collect your sample. There is no additional charge for this. Once you've ordered your test, we'll send you everything you and your chosen medical professional will need to collect a sample and post it back to our labs.
Still unsure how it works? You can find more information on collection methods and the service we provide in our 'How it Works' section.
How does it work?
1. Collect your blood sample
It takes 5 minutes to collect a small sample of blood from your finger tip. Post it back to our labs using the Tracked-24 envelope included in your kit.
2. View your results
Your results will be sent to the Forth app within 2 working days, along with the optional doctors comment and detailed report.
3. Make improvements
The detailed report makes it easy to identify areas that need improving, make changes and track your progress.
What gets tested?
3 Biomarkers
Additional biomarkers can be added by personalising this test.
What are biomarkers?
Biomarkers are specific compounds we can detect in your blood sample that reflect different things about your health. Your test will tell you your levels for each of the above biomarkers, and whether they are in a normal range.
About flexible subscriptions
How does a subscription work?
When you purchase this test subscription plan, we will automatically send you another test kit in a few months. Don't worry - you have full control over when this will be, and you can change/cancel it anytime.
When you first purchase this test, you can choose your subscription options in the checkout. We do this, because we recommend taking multiple tests over time to track how your biomarkers change. You'll be charged per test kit (rather than monthly, for example).
Why subscribe to multiple tests?
One test will show you what areas you need to focus on, continued testing will help you learn how your training, diet and lifestyle is impacting your health.
How often should I test?
We recommend a follow up test 3 months after your first test, followed by a test every 6 months depending on your results, but its up to you!
Can I change what's tested in future tests?
Yes, you can tailor/customise subsequent tests (via your app) to focus on just the areas that need improving.
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Analysed by
NHS Lab
NHS Lab
Tracked 24
delivery
delivery
Personalised
GP advice
GP advice
Finger prick or venous collection
Thyroid Blood Test
Results in 2 working days
3 Biomarkers
Our thyroid blood test checks hormones that can indicate whether your thyroid is functioning properly. A thyroid issue can affect your mood, energy, weight, sleep, and muscle function.
Analysed by
NHS Lab
NHS Lab
Tracked 24
delivery
delivery
Finger prick or venous collection
£50
3 Interest-free payments Learn more
What gets tested?
3 Biomarkers
Blood sample collection options
How does it work?
When do I take the test?
You can provide the sample for the thyroid check at any time, but we don’t recommend checking your thyroid levels during illness as this may give an inaccurate result.
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As seen in
The average person spends 20 years in poor health. Take control - don't let that be you!
Powered by cutting-edge technology Forth's market leading app converts blood test results into simple real-world health scores, making insights about your health easy to understand and to act upon
Unlock your health scores
Translates biomarker results into health scores for reproductive and thyroid health
Personalised health targets
Triiodothyronine (T3, free)
Healthy
6.5 (pmol/L)
Next target 4.5 - 5.5 (pmol/L)
Get incremental, achievable targets based on your unique results, ensuring progress at every step
Focus where it counts
78
100
Thyroid health
GOODHealthCoach's smart algorithms identify the specific areas which will make the biggest impact on your journey to better health
Guidance for optimal health
78
100
Thyroid (T3 v T4)
GOOD
Although TSH is suppressed, T4 is in range. This suggests subclinical hyperthyroidism, which could indicate an intermediate situation either tending towards developing an overactive thyroid or the process of altering dose of medication to regulate a thyroid condition.
Get tailored advice which considers your gender, age, hormone treatments and menstrual cycle to help you reach optimal health
What this test measures
3 Biomarkers
Thyroid Stimulating Hormone (TSH)
Thyroid-stimulating hormone (TSH) regulates thyroid function by stimulating the production of thyroid hormones T3 and T4, which control metabolism and energy production. Women are more likely to develop thyroid disorders than men. Abnormal thyroid levels impact weight, energy levels, mood, menstrual cycle and can cause erectile dysfunction in men.
Thyroxine (T4, free direct)
A thyroxine (T4) test is used to check that the thyroid is performing properly. An overactive thyroid can cause too much thyroxine to be released whilst an underactive thyroid can lead to too little. Abnormal levels can impact weight, energy, and mood. Free T4 measures the free or unbound levels of T4.
Triiodothyronine (T3, free)
Triiodothyronine (T3) is the active form of thyroxine (T4). High T3 levels may indicate hyperthyroidism, with symptoms such as fatigue, weight loss, irritability, and increased heart rate. Low T3 levels can suggest hypothyroidism, causing fatigue, weight gain, and muscle stiffness. Free T3 measures the free or unbound levels of T3.
Why do the Thyroid Blood test?
Our thyroid check is for anyone wanting to check if their symptoms – such as a sudden change in weight, mood changes, difficulty sleeping or muscle weakness – could be due to a thyroid issue. It is also useful for monitoring an existing thyroid condition.
Thyroid Blood Test, recommended by our doctors
"A thyroid function blood test evaluates the health of your thyroid gland. It measures levels of thyroid hormones (T3 and T4) and thyroid-stimulating hormone (TSH). Abnormal results can reveal hyperthyroidism (overactive thyroid) or hypothyroidism (underactive thyroid), this test is particularly useful for looking at causes of fatigue, mood changes and weight fluctuations. "
Dr Thom Phillips
Clinical lead
Meet our team of experts
Our team of specialist doctors, dieticians and biomedical scientists are here to help you be in the best of health.
How our Thyroid Blood Test works
Getting the insights you need to improve your health has never been easier.
1. Collect your blood sample
It takes 5 minutes to collect a small sample of blood from your finger tip. Post it back to our labs using the Tracked-24 envelope included in your kit.
2. View your results
Your results will be sent to the Forth app within 2 working days, along with the optional doctors comment and detailed report.
3. Make improvements
The detailed report makes it easy to identify areas that need improving, make changes and track your progress.
What's included in this test?
1x Yellow Tube
3x Lancets
1x Cleansing wipes
Plasters
2x Alcohol swabs
1x Return pouch
1x Tracked 24 return envelope
1x Lab request form
Blood sample kit
Results within 2 working days
Tracked 24 delivery & return
Secure health dashboard
NHS lab analysis
Doctor reviewed results
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- Health scores calculated
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Frequently asked questions
This is what our customers ask us most about this test. For more information, try our help centre.
How do I take my blood sample
It’s easy to take a finger prick blood sample, but we know for some this can be a bit nerve-wracking, especially if you haven’t done it before.
So, we’ve created a how-to video to help you collect a successful sample.
But don’t worry if you don’t manage to get it right the first time, just contact our customer support team at [email protected] to request a replacement kit.
When will I get my results?
We aim to deliver your results within 2 working days of your blood sample arriving at our lab.
How do I view my results?
When you buy your test, we will ask you to create an account with us during checkout. This will give you access to your own, secure health dashboard where you can view your results.
How do I find out my results are ready?
We keep you updated throughout the process by email and text message.
We will let you know when your blood sample has arrived at our lab. Once the blood sample has been analysed one of our doctors will review your results.
Once your results are ready, we will email you and send you a text message to let you know your results are ready for you to view in your health dashboard.
How soon will the test arrive?
If you order your test before midday on a Monday to Friday then your kit will be dispatched
the same day.
All our kits are sent out via Royal Mail first class post, so it should be with you within 1-2
working days.
How secure is my data?
We have strict processes in place to ensure the protection of your data. Following GDPR the company also operates under tight legal rules about the sharing of data which ensures that data is only shared if it is crucial to the delivery of our service. For example, our doctors see customer results at the time of review, however, after review, access to results is withdrawn.
Learn more about your data security.
Can I have someone take my blood for me?
Yes. We offer two options if you do not want to do our finger prick test. The first is a home appointment where a nurse comes to your home to take a blood sample. The second is to visit a Phlebotomy clinic near you that offers a blood sample service.
A blood sample will be taken from your vein and we will provide you with everything you need to give to the nurse to allow them to take the sample.
The nurse will give you the blood sample to return to us using the pre-paid envelope provided.
Does a doctor review my results?
We have a team of doctors and nurses who look at all results and will comment on any results that are outside of the normal range for your age.
Can I download the results to share with my GP?
Yes, you can download your results from your health dashboard as a PDF to share with your GP.
Learn how to export your results.
We are dedicated to supporting you on improving your health
Go to help center
What customers say about our Thyroid Blood Test
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