Vitamin B12 injections are a fast and effective way to restore and maintain healthy vitamin B12 levels. Vitamin B12 plays an essential role in red blood cell production, nerve function, DNA synthesis, and energy metabolism.
At Credo Aesthetics in Bristol, Vitamin B12 injections are administered by a qualified nurse following a medical consultation to ensure safety and suitability.
Unlike oral supplements, injectable B12 bypasses the digestive system, allowing for better absorption — particularly beneficial for individuals with absorption difficulties.
Learn more about the scientific facts about Vitamin B12 in our Blog
Vitamin B12 deficiency can contribute to a variety of symptoms and health concerns, including:
Fatigue and low energy
Brain fog and poor concentration
Low mood
Weakness
Tingling or numbness in hands and feet
Anaemia related to B12 deficiency
Vitamin B12 injections may support:
Improved energy levels
Cognitive clarity
Nervous system function
Overall wellbeing
A blood test may be recommended if a deficiency is suspected.
Certain individuals may be more prone to Vitamin B12 deficiency, including:
Vegetarians and vegans
Individuals over 50 years of age
Those with gastrointestinal disorders (e.g., IBS, Crohn’s disease)
Patients with pernicious anaemia
Individuals who have had gastric surgery
Long-term users of certain medications (e.g., Metformin, PPIs)
A consultation at Credo Aesthetics will assess your risk factors and suitability
Vitamin B12 injections may not be suitable for individuals who:
Have a known allergy to cobalt or Vitamin B12
Have Leber’s disease (hereditary optic nerve atrophy)
Have certain blood disorders
Are you pregnant or breastfeeding (without medical supervision)
Have an active infection at the injection site
A full medical history will be taken prior to treatment.
Initial Consultation
Before receiving a Vitamin B12 injection:
A brief medical assessment will be carried out
Current medications and health conditions will be reviewed
Symptoms of deficiency will be discussed
If appropriate, the injection can usually be administered during the same appointment
Treatment Procedure
The injection is typically administered into the upper arm (intramuscular injection)
The procedure takes only a few minutes
Most clients do not experience any discomfort
There is no downtime following treatment.
After care
After a Vitamin B12 injection:
You may resume normal activities immediately
Mild tenderness at the injection site may occur
Stay hydrated
Report any unusual symptoms to your practitioner
Side effects are rare but may include mild redness or swelling at the injection site
Recommended number and frequency of treatments
Frequency depends on individual needs and whether a deficiency is present.
Typical protocols may include:
Weekly injections initially (if deficient)
Maintenance injections every 4–12 weeks
Your practitioner will advise a personalised schedule
Procedure time
5 minutes
Down time
None
Some clients report increased energy within a few days, while others notice gradual improvement over 1–2 weeks.
Yes, when administered by a qualified professional following an appropriate medical assessment.
Effects vary depending on individual levels and metabolism. Maintenance injections may be required.
If you are not deficient, supplementation may not provide significant additional benefit. A consultation will determine suitability.
Side effects are uncommon but may include mild redness or discomfort at the injection site. More serious, for example, muscle cramps, itching, and swelling of the face ( in case of an allergy) should be reported immediately.
Do B12 injections hurt?
Discomfort is minimal - usually a quick pinch at the injection site.
Do I need blood tests before treatment?
Blood testing is often recommended to confirm deficiency and tailor dosing.
Can B12 injections help with weight loss?
B12 supports metabolism and energy, but is not a weight-loss treatment on its own.
Treatment prices
Single treatment: £30
Treatment booking deposit: £30