The personal attention has been very important to me and my wife
Vitamin B12 deficiency has been linked to fatigue, tingling or loss of feeling in the extremities, irritability, memory impairment, depression, anemia, irritable bowel syndrome (IBS), constipation, poor wound healing, dry or damaged looking skin, and neurological disorders
This is also where the supply-versus-stability point from the reconstitution section bites: if a reconstituted 10 mg vial holds ~66 doses but the solution is only reliably stable for a few weeks, plan the reconstitution volume so you are not left discarding drug you paid for
Different syringes may require specific types of needles for proper attachment and functionality
Hydroxocobalamin : A natural Vitamin B12 form, known for lasting longer