Storage Sealed storage, away from moisture * In solvent : -80C, 6 months
Retrieved March 15, 2025, from [ \- Link Opens in New Tab]( National Health Service
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
Everyone is so friendly and treat you like you are part of their family
The raspberry flavor is delicious, and I love that they have zero sugar, which is perfect for my health goals