Active Vitamin B12 Test

Measures the biologically active form of Vitamin B12 available for use in the body.

We also provide a wide range of the other blood tests or any of the above panels as individual tests. Please get in touch with any queries:

Biomarkers:

This profile includes:

Active Vitamin B12 (Holotranscobalamin) – the fraction of vitamin B12 that is available for use by your cells and a sensitive marker for early deficiency

How it works:

Book Your Appointment

Choose your test and book online or in-store.

Professional Blood Collection

Your blood sample is taken in our private consultation room by a trained clinician.

Laboratory Analysis

Samples are sent to a CQC-registered UK laboratory using hospital-grade diagnostics.

Doctor’s Report & Interpretation

You receive a detailed, easy-to-understand report explaining:
  • What your levels mean.

  •  Whether anything requires attention

  • Suggested next steps

  • Lifestyle recommendations

Doctor’s Report
& Personalised Insights

You’ll receive a clear, easy-to-follow report that
breaks down your results, including:

  • What your results indicate
  • Any areas that may need further attention
  • Recommended next steps
  • Practical lifestyle advice to support your health

Doctor’s Report & Personalised Insights

You’ll receive a clear, easy-to-follow report that breaks down your results, including:

  • What your results indicate
  • Any areas that may need further attention
  • Recommended next steps
  • Practical lifestyle advice to support your health

Why Not Just See My GP?

GP services are essential for diagnosing illness. However:

  • Routine full health screening isn’t always available

  • Advanced hormone or performance panels are rarely offered

  • Appointment wait times can be long

Our service is ideal for:

  • Preventative health monitoring

  • Performance optimisation

  • Hormone assessment

  • Reassurance and clarity

It complements — not replaces — your GP care

Do I Need to Fast?

Some tests (cholesterol, glucose, insulin) may require fasting for 8–12 hours. If required:

  • Drink water only

  • Avoid tea, coffee and supplements

  • Continue prescribed medication unless advised otherwise

We’ll confirm when you book.

Why Not Just See My GP?

GP services are essential for diagnosing illness. However:

  • Routine full health screening isn’t always available

  • Advanced hormone or performance panels are rarely offered

  • Appointment wait times can be long

Our service is ideal for:

  • Preventative health monitoring

  • Performance optimisation

  • Hormone assessment

  • Reassurance and clarity

It complements — not replaces — your GP care

Do I Need to Fast?

Some tests (cholesterol, glucose, insulin) may require fasting for 8–12 hours. If required:

  • Drink water only

  • Avoid tea, coffee and supplements

  • Continue prescribed medication unless advised otherwise

We’ll confirm when you book.

FAQs

A focused blood test that measures active vitamin B12 (holotranscobalamin) — the form of B12 that your body can actually use at a cellular level.

This test measures:

Active Vitamin B12 – the biologically available form used by your body

Unlike standard B12 tests, it focuses on the “active” portion, which is considered a more accurate early indicator of deficiency.

Vitamin B12 is essential for:

Red blood cell production

Nervous system function

DNA production and energy metabolism

Deficiency can develop gradually and may not always be detected with standard total B12 tests.

Low active B12 levels can lead to:

Fatigue and low energy

Weakness

Pins and needles or nerve symptoms

Poor memory or concentration

If left untreated, deficiency can lead to more serious complications, including anaemia and nerve damage.

This test is particularly useful for:

Individuals with fatigue or neurological symptoms

Vegetarians or vegans (higher risk of deficiency)

People with absorption issues (e.g. gut conditions)

Those monitoring B12 treatment or supplementation

For best accuracy:

Avoid vitamin B12 supplements for up to 2 weeks prior (if advised)

Avoid biotin supplements for 48 hours beforehand

Follow any instructions provided at booking

A phlebotomy blood sample is taken by trained professionals to ensure accurate results.

You can attend our branch or one of our partner clinic locations. We do not offer home testing.

Results are typically available within a few days and are presented in a clear, easy-to-understand report.

If your levels are low, you can take appropriate next steps — including dietary changes, supplementation, or medical treatment under professional guidance.

This test is a highly useful indicator of B12 status but should be interpreted alongside symptoms and clinical advice.

Blood Testing

SIMPLIFIED.

We test everything

Blood Testing

SIMPLIFIED.

We test everything

Why Choose Balance Pharmacy?

Many online providers simply send automated results.
We offer:

In-person clinical service

Doctor-reviewed reports

Local healthcare professionals

Trusted community setting

You’re not ordering a test — you’re investing in your health.

Book Your Private Blood Test Today

Take a proactive approach to your health with professionally delivered, doctor-reviewed private blood testing in Uttoxeter.

Appointments available throughout the week.