It is difficult to give a one-size-fits-all answer to the question, "How long does it take for B12 injections to work." It is possible for some individuals to notice the improvement in their symptoms right away, whereas, for others, it may take additional injections to achieve optimal health
BMC Gastroenterology , 17(1), 96
For long-term storage beyond one year, or for vials from a multi-month supply that will not be opened for extended periods, the freezer at -20 degrees Celsius is the better choice, extending stability to two years or more
Among ROS, hydroxyl radicals are particularly harmful, causing mitochondrial dysfunction and contributing to conditions such as cancer, Parkinsons disease, dementia, and skin aging
Psychopharmacology (Berl) 1996
Energy is lower