Get insights into your energy levels with a home blood test

Stay on top of your health with a home blood test and GP-reviewed results.


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What causes low energy levels?

While changes in your energy levels are normal, long periods of tiredness might be a sign that something else is going on. A lot of factors can affect your energy — from your hormone levels to your diet. 

Understanding what’s causing you to feel tired is the first step to improving your energy.

What can this test tell you?

This finger-prick blood test will measure a range of factors that could be affecting your energy levels — including nutrient levels, thyroid function, and hormone balance.

You’ll also get insights into other areas of your health and what to focus on so you can take health into your own hands.

What’s included in this test?


Advanced iron profile

Your body uses iron to make haemoglobin — a part of red blood cells that carries oxygen around your body. If you don't get enough iron you might develop iron deficiency anaemia. Tiredness, shortness of breath, and heart palpitations are signs you might be deficient. 

A full iron profile measures 5 iron markers: ferritin, total iron binding capacity (TIBC), transferrin saturation (FESA), total iron and unsaturated iron binding capacity (UIBC).


Vitamin D

Vitamin D is thought to help support your mitochondria — the "powerhouses" in your cells that produce energy for your body to use. If you’re deficient in vitamin D, you might feel very tired and have low mood..


Thyroid profile

The thyroid is a gland in your neck that produces hormones that help control your metabolism — processes like breaking down food into energy. If your thyroid gland is underactive, it can mean you’re not producing enough of these hormones, causing low energy levels. It can also affect how well you sleep and your mood.

A basic thyroid profile measures thyroxine (T4), the main hormone produced by your thyroid, and thyroid-stimulating hormone (TSH), a hormone that regulates your thyroid.

How it works

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Get your Thriva kit

Order your test online. We'll post your finger-prick blood testing kit the next working day.

Do your test

Do your test

Your kit contains everything you need to do your test and post your sample. See how to do your test

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Get results in 48 hours

Your results, along with a personalised report from a GP, will be available online. Meet our doctors

Finger-prick blood testing kits are CE-marked and blood samples analysed by UKAS accredited lab

Your sample will be analysed by a CQC-registered and UKAS accredited lab. This finger-prick test and kit are CE-marked.

Here to support you

With the power of technology and a team of qualified experts, get personalised insights and advice about your health.

Get insights that matter

Get insights that matter

Understand what’s happening inside your body and the impact your lifestyle is having.

Improve your health

Improve your health

Discover evidence-based ways to improve your results and health, along with recipes, supplements, and more — all personalised to you.


Track your health

By understanding your body and what works for you, you can be in control of your health.

Want to know more?


How quickly will I receive my order?

We typically send out kits with Royal Mail 1st class on the same working day if ordered Monday through Friday before 1pm. Orders placed before 1 pm usually arrive the next working day, while orders placed after 1 pm typically take two working days.


Do I need to be in to receive my kit?

No — your test kit is designed to fit through your letterbox, and it don't require a signature on delivery.


Are the kits discreet?

Yes, your kit will arrive in plain packaging.

Order your test today


Data Protection

Your data is in safe hands. We use the latest encryption technologies and comply with the UK Data Protection Act 2018. See privacy policy

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Our blood testing kits are CE-marked, and we work with UKAS accredited labs who are registered with the CQC. See labs and accuracy