VITAMIN BOOSTER B12 INJECTIONS Single £50 Course of 6 £250 Vitamin B12 is non-toxic – even at really high doses.After water and oxygen, vitamin B12 is the next essential micronutrient molecule vital for health.Vitamin B12 deficiency is common and can manifest at any age and is largely unrecognised.Vitamin B12 is crucial for many systems of the body to function correctly.Pernicious anaemia is just one illness related to a deficiency in vitamin B12.It is believed that vitamin B12 deficiency is not always detectable on blood tests (NCBI, 2021).Symptoms such as depression, anxiety and psychosis as well as the early onset of dementia are common with vitamin B12 deficiency.Causes of B12 deficiency include genetic disorders, poor diet, gastrointestinal illness or surgery, alcoholism and use of acid reflux medications.