The injection is administered by UK registered pharmacists or pharmacy technicians who have completed special training in the administration of intramuscular injections
Additionally, personalized treatment often involves monitoring and adjustments
However, by this point, you will be deficient in the money you have spent on needless injections, so Save Face recommend a full check-up with either your NHS GP or a private doctor, who can confirm your symptoms and any genuine deficiency with a blood test, and more importantly can prescribe the best type of B12 product and treatment programme to suit your needs.
However, vitamin C injections are typically only used when vitamin C levels need to be increased quickly or when oral supplements cant be taken due to poor absorption or other reasons
Theoretically, you could develop health problems if you take an excessively large dose of vitamin B12 supplements all at once
The dose can increase to 0.63 mg if needed