Metabolic & nutritional health

Vitamin D Blood Test Kit (25-OH) – Self-Collect

Convenient home blood testing kit to measure your Vitamin D (25-OH) levels—test for Vitamin D at home with easy self-collection.

£

83.50

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  • Fast turnaround test results
  • Results shared electronically via secure SMS
  • Easy sample collection
Turnaround time: 1 day
Sample type: Small-volume capillary blood collection kit (TDL Tiny)

What do we test for?

Vitamin D (25-OH)

Measures the level of 25-hydroxyvitamin D in the blood, the best indicator of overall Vitamin D status. Essential for bone health, muscle function, and immune support.

How will this help you?

What is the Vitamin D (25-OH) Test?

The Vitamin D (25-OH) blood test measures 25-hydroxyvitamin D—the main circulating form of Vitamin D in your body. It’s the gold standard marker to assess whether you have sufficient Vitamin D for healthy bones, muscle function, and immune support.

What’s Included in Your Home Blood Testing Kit?

Who Should Consider an At-Home Vitamin D Blood Test Kit?

How to Test Vitamin D Levels at Home

Testing your Vitamin D levels at home is straightforward and safe. Simply:

“Convenient, accurate, and discreet—track your Vitamin D levels from the comfort of home.”

Frequently asked questions

How accurate are at-home Vitamin D blood tests?

Our at-home Vitamin D blood test kit uses capillary sampling with a small-volume TDL Tiny device. It’s highly accurate when you follow the included instructions and send your sample to our UK-accredited lab promptly.

How do I collect my blood sample with the TDL Tiny kit?

Collecting your sample is simple: use the lancet to draw a few drops of capillary blood into the TDL Tiny collection tube, cap it, label it, then seal it in the return packaging. Follow each step in the instruction leaflet.

What is a Vitamin D (25-OH) blood test?

A Vitamin D (25-OH) blood test measures the level of 25-hydroxyvitamin D in your bloodstream—the best indicator of your overall Vitamin D status. It helps identify deficiencies or insufficiencies that can affect bone health, immune function, and more.

When and how will I receive my test results?

You’ll receive an email notification within 2–3 working days once your sample arrives at the lab. Your full report will be available in your secure online account, and you can book a GP follow-up to discuss results further.

Who should take a Vitamin D blood test at home?

If you experience fatigue, bone pain, muscle weakness, or have limited sun exposure, an at-home Vitamin D blood test kit can help you check your levels conveniently. It’s also useful for those on restricted diets or with certain medical conditions.

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How Mayfield's home blood testing works

1
Order Your Home Blood Test Kit Online

Get started by choosing the right at-home blood test kit for your needs — whether it's for cholesterol, thyroid, vitamin levels, or general health screening. Your kit is delivered in discreet, secure packaging.

2
Collect Your Sample at Home

Using our easy-to-follow instructions, collect a small blood sample with the included lancet and tube. No need for a clinic visit — everything you need for accurate testing is in the kit.

3
Send It to Our Accredited Lab

Place your sample in the prepaid return envelope and post it to our certified partner lab. Our labs follow the highest standards to ensure fast, reliable blood analysis.

4
Get Your Results by Text, Fast

You’ll receive a text message with your results as soon as they’re ready — usually within 1–3 days. A full lab report is included, giving you a clear breakdown of your blood test findings. Need help understanding your results? You can book a follow-up consultation with one of our clinicians at any time.

Learn more

Why Mayfield Clinic for home testing

Why Choose Mayfield Clinic for Your At-Home Blood Test?

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