Private Vitamin B12 Test London
Measure your vitamin B12 levels essential for energy production, nerve function, and red blood cell formation.
Vitamin B12 (Active) (Venous)
Test fee £81 + £50 phlebotomy fee (per visit)
- Results in 1 day"
- UKAS accredited laboratory
- Professional phlebotomy service
- Confidential results portal
Or call 020 7183 2362
Pay at clinic on the day of your appointment
Vitamin B12 Test – Private Testing in London
The Vitamin B12 Test is available at South Kensington Medical and Dental, our CQC-registered clinic in South Kensington, London SW7. This test is priced at £81. A £50 phlebotomy fee applies per visit for blood collection. It requires a venous blood sample, and results are typically available within 1 day.
Vitamin B12 (cobalamin) is essential for nerve function, red blood cell formation, and DNA synthesis. Deficiency can cause macrocytic anaemia and irreversible neurological damage if untreated.
Who Should Consider the Vitamin B12 Test?
Vegetarians, vegans, and those with restricted diets (B12 is found almost exclusively in animal products). Older adults, as absorption decreases with age. Those with fatigue, tingling, numbness, memory problems, or anaemia. Patients taking metformin or proton pump inhibitors long-term.
Active B12 (holotranscobalamin) measures the fraction available for cellular uptake and is a more accurate marker than total B12, particularly for borderline deficiency.
A trained nurse collects the blood sample by standard venepuncture, a straightforward procedure that typically takes around five minutes. Our clinic is on Old Brompton Road, directly opposite South Kensington tube station (Piccadilly, Circle, and District lines). No GP referral is needed — book online or call 020 7183 2362.
Check Your B12 Levels
B12 deficiency can cause fatigue, neurological issues, and anaemia if untreated.
- Energy levels
- Nerve function
- Red blood cell health
- Vegetarian/vegan essential
- Memory and cognition
- Fatigue investigation
How It Works
Book Online
Choose a convenient date and time
Visit Our Clinic
20 Old Brompton Road, South Kensington
Quick Blood Draw
Professional phlebotomy, 5 minutes
Get Results
Results in 1 day"
Frequently Asked Questions
Common questions about this blood test
Visit Our London Clinic
Central London location with excellent transport links
Address
South Kensington Medical & Dental
20 Old Brompton Road
South Kensington
London SW7 3DL
Getting Here
- 2-minute walk from South Kensington tube
- Circle, District & Piccadilly lines
Opening Hours
- Monday, Wednesday9am - 6pm
- Tuesday, Thursday9am - 8pm
- Friday8am - 5pm
- Saturday10am - 4pm
- Sunday10am - 4pm
Contact
Ready to Book Your Test?
No GP referral needed. Book online and get tested at our South Kensington clinic. Results within 1 day".
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Meet Our Medical Team
Our experienced medical team is fully qualified and registered with the GMC and NMC, delivering safe, high-quality care in line with the highest professional standards.
Because our patients deserve nothing less.
Registered. Regulated. Trusted.
At South Kensington Medical & Dental, we are fully registered with the Care Quality Commission (CQC) and our clinicians are registered with the relevant UK regulatory bodies, including the GDC and GMC. Our dentists, dental nurses and medical professionals deliver care that meets the highest clinical, safety and ethical standards, because our patients deserve nothing less.
