b12 tablets or injections Shots & for Weight Loss Compounded Cyanocobalamin (Vitamin B12) Injection

Supports research into improved fatty-acid utilisation

Some conditions, like pernicious anemia, make it hard for your body to absorb B12

Always good to have a reason I have also had this happen when my folate was low , it may be worth you getting it checked I had self inject my B12 every 4 weeks for the last 20+ (cannot really remember how long accurately), and 2 months ago got a similar 'electric shock tingling' all over my body - head, face, arms, hands, legs, feet etc within a couple of minutes of injecting, which lasted about 3 seconds or so

Are Vitamin B12 Injections Safe

Lifestyle factors greatly influence ones Vitamin B levels