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Vitamin B12 Deficiency

Vitamin B12 injection therapy at Real You Clinic​

What is Vitamin B12?

Vitamin B12 is an essential component for reactions related to DNA and cell metabolism. If you have low vitamin B12 levels this can have serious consequences on your health.

Pregnant women who are strict vegans must take care to avoid Vitamin B12 deficiency as it can pass to the baby.

​How many of us are B12 deficient?

In the UK, 16% of people aged less than 60 years old are Vitamin B12 deficient, which increases to 20% of people aged over 60.

At a glance:

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​What causes B12 deficiency? 

  • Impaired digestions due to intestinal malabsorption 
  • Parasites 
  • Pernicious anaemia
  • Malnutrition
  • Strict Vegan diet 
  • Alcohol 
  • Anti-acid medication (proton pump inhibitors such as lansoprazole)
  • Metformin medication

How will I feel if I am deficient?

How you may feel if you suffer from Vitamin B12 deficiency really depends on how low your levels are, but you may experience some of the following symptoms:


  • Fatigue & tiredness
  • Heart problems
  • Inflamed tongue
  • Ulcers on tongue
  • Altered taste
  • Anaemia
  • Poor coordination
  • Weakness and muscle stiffness
  • Pins and needles in hands and feet
  • Poor memory and concentration
  • Infertility
  • Depression

How do I get tested?

Dr Kathryn will complete a blood test in order to determine your B12 levels. Your blood test will cost between £50 – £135. Dr Kathryn uses 2 labs for test analysis in London, and the cost varies dependent on the lab.

What is the treatment for B12 deficiency?

B12 injections are an effective treatment for Vitamin B12 deficiency. These cost £40 per injection, which are repeated every 1 to 2 weeks until your symptoms resolve and blood test results show improvement. Injections are done in the muscle of your arm or buttock.

Once your levels have improved, a B12 oral supplement may be suitable as an ongoing option.

Please check out some of the symptoms in more detail below.

Dr Kathryn will discuss your treatment plan in depth with you at your consultation.

How can I make an appointment?

Book a 10 minute complimentary initial consultation with Dr. Kathryn over a phone call, Facetime, or WhatsApp video. Contact us at or call 020 8901 6444 to schedule your appointment.

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Click to see the full list of Real You Clinic treatments
Acne scarring
B12 Injections
BioIdentical Hormones
Botox Treatments
Brown Spot Removal
Collagen Stimulation
Crepey Skin
Dermal Fillers
Earlobe plumping
Facial Redness
Facial Thread Veins
Hands Rejuvenation
Hay Fever Injections
IPL Treatments
Jaw Sculpting
Labial Puff
Laser for Vascular
Lines and Wrinkles
Lip Enhancement
Lipstick Lines
Masseter Reduction
Menopause Testing
Micro Needling
Mole and Skin Tag Removal
NDYag® Treatments
Neauvia® Range
Non-Surgical Nose Job
Nordlys Light&Bright®
Obagi NuDerm®
Pigmentation Brown Spots
Pores Treatment
Silhouette Soft® Thread lift
Skin Boosters
Skin Peels
Skin Resurfacing
Skin Tightening
Spring Threads
Sweat Reduction
Thread Lifts
Turkey Neck
Under Eye Wrinkles
Vaginal Rejuvenation
Vitamin D Injections
Weight Management

If you are concerned or would just like to discuss your health and wellbeing with Dr Kathryn for peace of mind, please do get in touch on 020 8901 6444 or

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  • Avatar Thricilla Crowbech ★★★★★ 2 months ago
    I highly recommend Dr Kathryn’s Real You Clinic for aesthetic procedure’s. Dr Kathryn uses premium quality products, that … More last. Her prices are reasonable, which is one of the reasons I switched to her. Dr Kathryn takes her time getting to know you before any procedure takes place, which helps to build a great rapport with you as her client. I have complete faith and trust in her, as I know that she would not perform procedure just for money or even at my request, if it was totally unnecessary. She is honest and straight talking, and fantastic at what she does.
  • Avatar Abi Marks ★★★★★ 2 months ago
    I have been visiting Dr Kathryn’s practice for a number of years now, most recently for a light and bright treatment to treat … More extreme pigmentation. The difference in my skin is so significant and has totally transformed my appearance and confidence. She is a true professional and master in her field and I can not recommend her service highly enough. In addition to her expertise she is consultative, kind and patient, always taking her time to thoughtfully explain the process. As an extremely nervous client I always feel at ease in the clinic and can’t wait for my next treatment!
  • Avatar M Selway ★★★★★ 5 months ago
    I have been having treatments with Dr Kathryn at Real You for years. She is truly amazing in helping to keep me looking youthful … More yet still subtle. She has a delicate hand with those needles and I would never go anywhere else. I also prefer a clinic with an experienced and highly qualified Doctor. The clinic is always beautiful high quality and relaxing.
    Highly recommend Dr Kathryn and Real You in St Margarets.
  • Avatar una bruen ★★★★★ 4 months ago
    I am so happy that I discovered Dr. Kathryn and her lovely clinic. She is so knowledgeable especially on women’s health issues … More and is such a caring person. It is refreshing that she always remembers your last visit, issues and history. One feels that she really has a personal connection with her patients. Blood test results and prescriptions arrive within 24 hours of appointment and I especially like that she also emails a resume of everything discussed and any procedures done during the consultation. So useful to refer to as needed later.
    No need to fear injections with Dr. K. whether it is vitamins or Botox as she is an expert with that syringe! Highly recommend you pay her a visit for health or beauty solutions.

My Journey with Alastin Skincare

My Journey with Alastin Skincare

Hello, I'm Dr. Kathryn Taylor-Barnes, the founder of Real You Clinic. As a dedicated practitioner in aesthetic medicine, I'm always on the quest for skincare products that not only promise but deliver real results. My latest discovery, Alastin Skincare, has been...

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