does injectable vitamin b12 need to be refrigerated Shots at Home: How, Where & How Often Inject Yourself B12 vitamin Store Storage Instructions

Because its a water-soluble vitamin, any excess that isnt used should be flushed from the body and not pose too much risk (not the case with fat-soluble vitamins like vitamin A)

Quality varies significantly between sources, and independent testing for purity and potency is not consistently available

Are there any side effects I should be aware of

The symptoms are: Lethargy Depression Mouth ulcers Pale yellow skin Disturbed vision Fatigue Breathlessness Palpitations Loss of appetite Weight loss Headaches A decline in mental abilities Irritability It is always best to consult an expert whether you need vitamin B-12 injections or supplements