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.

Magnesium home blood test - Results
Magnesium home blood test - Track your results
Magnesium home blood test - Compare your results to others

Magnesium Blood Test

Trustpilot 4 stars

1 Biomarker Included

Keep track of your magnesium levels with our at-home blood test. This essential mineral plays a crucial role in various bodily functions, from supporting muscle and nerve function to maintaining a healthy heart rhythm.

Validated & analysed by NHS Lab

Finger prick or venous collection

Doctor reviewed

Results in 2 working days

£45

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What gets tested?

1 Biomarkers

Blood sample collection options

How does it work?

When do I take the test?

We recommend you take this test first thing in the morning before breakfast (but after a big glass of water!). Ideally it should be taken the morning after a rest day.

Certified for quality & security

ISO 9001 ISO 13485 ISO 27001 ISO 15189 MDR CE

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?

Kit

1. Choose your blood test

No need to wait for a GP appointment, choose from our wide range of tests which come with everything you need to take your sample and return to our lab.

Kit

2. Collect your sample

Take your finger prick blood sample at home, or choose to have your blood taken at a Superdrug health clinic or a nurse at home. Return to our NHS lab using our prepaid envelope.

Kit

3. View your results

View your results on your secure health dashboard within 2 working days of our lab receiving your sample. Read personalised comments from our GPs.

Kit

4. Make improvements

With more in-depth results, you will be able to identify areas that need improving. Make the changes and track your progress.

What gets tested?

1 Biomarker Included

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.

Did you know?

Increasing magnesium levels can help reduce the risk of stroke, heart failure and diabetes.

NIH: Dietary magnesium intake and the risk of cardiovascular disease, type 2 diabetes, and all-cause mortality
symptoms of low magnesium

How can a magnesium blood test help you?

This test checks the magnesium levels in your blood serum. 99% of the magnesium in your body is found in your bones, muscles and tissue, with the rest in your blood serum.

Checking your levels can help uncover the causes of symptoms related to high or low magnesium levels.

Symptoms of a magnesium deficiency include;

  • Muscle weakness
  • Fatigue
  • Irregular heartbeat
  • Nausea and vomiting

Symptoms related to high levels of magnesium in your blood include:

  • Diarrhoea
  • Nausea
  • Stomach cramps

How to test for magnesium deficiency at home

Checking for a magnesium deficiency at home is easy with our finger prick blood test. It has everything you need to collect a small blood sample and send it back (for free) to our NHS labs for analysis.

It takes around 15 minutes to complete the test and once the sample has reached our lab, we aim to return your results within 2 working days.

You’ll be able to see your magnesium levels, as well as where they should be for your age and gender.

home blood test icon
Vial-magnifyingGlass

Benefits of magnesium

Magnesium is an essential mineral that plays an important role in over 300 reactions in the body. You should get most of the magnesium you need from your diet, but you can also get magnesium supplements.

Magnesium is needed for:

  • Muscle function
  • Nerve function
  • Bone health
  • Heart health
  • Energy production
  • Blood sugar control
  • Digestive health

It can also be helpful for pregnant women, helping with foetal development – especially bone and nervous system development.

Frequently asked questions

This is what our customers ask us most about this test. For more information, try our help centre.

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

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We're changing people's lives

How our Magnesium Blood Test works

Getting the insights you need to improve your health has never been easier.

Kit

1. Choose your blood test

No need to wait for a GP appointment, choose from our wide range of tests which come with everything you need to take your sample and return to our lab.

Kit

2. Collect your sample

Take your finger prick blood sample at home, or choose to have your blood taken at one of our partner clinics or a nurse at home. Return to our NHS lab using our prepaid envelope.

Kit

3. View your results

View your results on your secure health dashboard within 2 working days of our lab receiving your sample. Read personalised comments from our GPs.

Kit

4. Make improvements

With more in-depth results, you will be able to identify areas that need improving. Make the changes and track your progress.

What's included in this test?

Yellow Tube

1x Yellow Tube

Lancets

3x Lancets

Cleansing wipes

1x Cleansing wipes

Plasters

Plasters

Alcohol swabs

2x Alcohol swabs

Return pouch

1x Return pouch

Tracked 24 return envelope

1x Tracked 24 return envelope

Lab request form

1x Lab request form

Blood sample kit

Results within 2 working days

Tracked 24 delivery & return

Secure health dashboard

Accredited lab analysis

Doctor reviewed results

Our impact in numbers...

70+

From hormones to nutrients, we offer 70+ different tests

60,000+

We've helped over 60,000 people improve their health

800,000+

We've delivered over 800,000 test results

Magnesium Blood Test