Welzo Test Centre

Welzo was set up by a team of medical industry experts, with a combined experience of 40 years in the testing, diagnostic and medical services sector.
  • 833, 19 - 21 Crawford Street, London, W1H 1PJ

  • +44 20 3048 3003

    • Monday to Friday

      09:00 - 18:00

    • Saturday

      10:00 - 16:00

    • Sunday


Our promise

  • Regstered healthcare professionals

  • Same day appointments

  • 24/7 customer service

How it works

  • Order Test

    Order as many tests as you require online

  • Delivery

    Test arrives to a UK address via Royal Mail Next-Day Delivery (order before 4pm weekdays) Free Shipping Included.

  • Swab & Test

    Use a smartphone or computer to upload a photo of your test & passport to our portal for results within 15 minutes.

  • Results

    Results & Certification Emailed securely. Certificate Signed & Verified By Our Doctors Within 15 minutes.

What is a normal range of vitamin D?

You will receive a result email and doctor-signed travel certificate.

When should vitamin D levels be checked?

Vitamin D levels can be checked at any time, but it is best to do it in the morning, before taking any vitamin D supplements. This will give you the most accurate reading of your levels.

What are the symptoms of low vitamin D?

The symptoms of low vitamin D can be subtle and may not be apparent for years. They include:
-Bone pain
-Muscle weakness
-Joint pain
-Impaired wound healing
-Increased risk of infections
-Memory problems
If you think you may be deficient in vitamin D, talk to your doctor about getting a blood test.

What is a normal range of vitamin D?